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super interesting, although i think the data could be presented in a significantly more readable way. at the very least, they could be sorted alphabetically or something within their groupings.

each name's specific page is also pretty cool, but the "similar names" is not working so good (or i do not understand how they are determining what is "similar"). names similar to 'Dee' includes: Mickey, Cosme, Clair, Guy, Glenn..?

I knew a dude with a traditionally female name because his parents were peak wasp and thought that was cool. Middling software engineer. Great bullshitter and talker generally. Dude ALWAYS made it past the HR resume screen stage.
I'm gonna credit George RR Martin with flipping Arya in the mid '90s
Ah, back when he still wrote.

Not that I'm bitter or anything

Except it didn't "flip" until 2004. It was also was never really a boys name. In 1990 there were 30 M Aryas and 6 Fs. Prior to 1982 it doesn't occur at all in the SSA data. The very first year that there were more than 100 Aryas total (2002), there were 54 Fs and 79 Ms.
I feel like a lot of these can be tied to one famous person with the name causing the gender to flip.
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> Of the 42 names that moved toward girls, 34 were driven mainly by an increase among girls, rather than a decline among boys.

> Surprisingly, the same pattern held in the opposite direction. Of the 12 names that moved toward boys, 9 shifted mainly because fewer girls were receiving them, rather than because more boys were. In other words, whichever way a name moved, the biggest change usually came from girls.

This is consistent with the observation that girl's names are more dynamic.

It seems there are lots of cases across the board where "women adopt traditionally male thing" has become the norm in this timeframe but not many where "men adopt traditionally female thing" at quite the same rate or scale.
I think there's something to this, but also you've got to think about the cultural standards where "female" is considered "abnormal".

e.g. you have "toys" and "girl toys". "clothes" and "girl clothes" and such. It's not everywhere or everything but there is a trend.

> also you've got to think about

We really don’t.

And shouldn’t.

close one, you almost had to think about something there.
And then we have skincare products and wellness.
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That is the pattern. Rarely would you have a baby boy using a women's name. Broadly speaking there is a general stigma within society going the other direction then women adopting male things.
Marion Morrison was a definitive male role model.
Is he related to Marilyn Manson or Alice Cooper?
Distantly. The all wore makeup at work.
What was his stage name again? John Wayne… point stands
A baby does not "adopt" their name, though. It is given to them.
The simple explanation is that parents don't want to give their sons gender-ambiguous names, but are more open to it for daughters. This is consistent with all of the dynamics described in the article.

Why that is the case is another question.

> This is consistent with the observation that girl's names are more dynamic.

Interesting, I wonder what causes this? In the US, is more common to name the first son after the father. Given this data comes from US social security information, that definitely has an impact.

I have no data but feel that boys tend to get the family names and biblical names (in US anyways). It's rare to hear of a girl named Elizabeth III or Mary Junior but quite common for boys. So I think the boy names are heavily weighted on probably the most popular ~25 or so names. So girl names are more free to follow whatever is fashionable at the time, trends move faster.
Anecdata: I’m a guy and a III. My son almost was a IV but we chose another first name and used my (and my dad’s and my grandfather’s) name for his middle name. My great grandfather had a different name, but I think his dad and maybe grandfather had the same name as me.
I’d agree the trend is waning if that’s what you’re getting at but I think it is baked into the history of this dataset and is also still significantly more common for boys than girls

Also, IV is really quite rare for boys too. Junior still super common.

Why would anyone make their kids legal name include “Junior”.

How does that work when they’re 60 with grandkids?

Yeah, it's a bit weird...

On some forms in the US, it's listed as a suffix. Some agencies enforce it, others do not (SSA does not, for example). And colloquially, when"Senior" dies, the son often stops using "Junior" (though that's not a legal change).

UK, Can, and AUS are similar, but not exactly the same as the US. And NSW in AUS complicates matters by outright prohibiting roman numberals are Jnr/Snr suffixes. Mexico has more restrictions due to the mothers-last-name, fathers-last-name naming convention.

Personally, I dig the Nordic and Arabic "x, son of y, son of z, son of..." patterns.

The UK doesn't really use those kind of suffix at all unless you're the king, so I'd imagine it would be quite hard with forms.
> the Nordic

Long obsolete except in Iceland.

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Not so long. My grandfather, born 1908 in Norway, kept the proper patronym as a middle name since he would otherwise have the same full name as his father. Everyone had to take fixed last names by 1923, but it wasn't uncommon to keep the patronym as a middle name like my grandfather did.
How the heck can one state of Australia prohibit certain types of names? Doesn't that cause all kinds of problems with documentation mismatches if someone moves?
They don’t change names when they move. The names are registered in the location of birth.

But your name might get mangled in some states if it doesn’t fit, same as it might in the US if some system doesn’t properly handle, e.g., multiple middle names or special punctuation.

(Brit here)

My first and middle names are John and Richard. A couple of times on trips to the US people have read my initials as 'Jr'. Very surprising the first time! Has never happened to me in the UK.

The Sopranos had a main cast Junior, who was also the oldest of the team. Just for some anecdata
I have Junior in my legal name - it's the bane of my existence when it comes to legal forms because of how inconsistent various systems handle it, even for different government systems. This became especially true after 9/11 and the Patriot Act pushed these systems to update and go digital because they couldn't get their act together to coordinate for years.
Ferenc Puskás the Hungarian footballer had grown up with the nickname Öcsi, meaning little brother. Later when he got old he was referred to as Puskás Öcsi bácsi, meaning Uncle Little Brother Puskás...
Not to offend, but I think it has declined because this naming of Jr, III, and so on has come to be associated with poor or rural people. For what it’s worth, I have a relative who is a IV
Never heard that framing before. In New England the practice is associated with blue-blood wealth.
This appears not to have been rigorously studied. Anecdotally, the further west one goes in America the higher the likelihood a suffix indicates low SES.
Well it’s likely the adoption by the Latinx. I think they demo grows as you move west. In Texas it’s become more common in that demo and the redneck whites. The monied still have it but more commonly go towards super preppy names like Tripp, Shep, Archer, Preston. A common theme I see if you dig deeper is they name one of the boys the mom’s maiden surname. But in general, surnames as first names is very common in this demo.
Eh, in my experience it’s all over the place. Scottsdale’s suffixes are largely not Latin. Instead, it probably indicates someone who sells real estate or crypto.
Fun part is that no one can stop poor people from imitating rich ones, so they do. Then rich ones start coming up with other ways to show to the others that they’re rich and poor copy over and over again.

I used rich as shorthand placeholder of blue blood, noble, famous and rich. Not everyone who is rich is noble and noble doesn’t mean they are rich.

There have historically been a lot of ways poor people were stopped from imitating rich ones, and not just the obvious ones involving spending money. The US is pretty enlightened in that there are no name protection laws that I know of. In many European countries, you still need permission from every carrier of a rare last name if you want to take it.
There have historically been also ways where poor stopped rich from being rich and having fancy name was making one a target.
Yes. Like that William H Gates III from Seattle.
"Junior" might be associated with poor or rural people, but "III" and "IV" can only convey the absolute maximum level of pompousness.
I've known two people in my life who went by some version of Trey as a nickname, as in some slight change if tres, three.
That's how actual posh people in Britain would see it too. Gauche.
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Not uncommon Jewish names.
Certainly Esther is reasonably common in the U.S., but when I saw her name I was expecting someone about 60 years older.
I thought girls didn't use junior, III, etc. because traditionally girls adopt their husband's last name, so they would no longer have the same full name as their mother.
There was quite a famous Elizabeth II.
She didn't get the suffix until her 20s. And it was not used to distinguish her from her mother (who was also a Queen Elizabeth) but from yet another Elizabeth who lived centuries earlier.
Elizabeth II was the first Elizabeth who was Queen of UK
Same with the current king Charles III of England. He is the first of that name to be king of the UK (and Canada, Australia, etc). Maybe people should revert to multiple ordinals, like James VI and I in 1603.
> I have no data but feel that boys tend to get the family names and biblical names (in US anyways).

Or both: the family names having been chosen originally from biblical names, but not continuing for that reason.

I'm a David, and there were many Davids in my University intake year, but I suspect that has less to do with the Bible and more to do with mothers of a certain age range having interests in the Davids Bowie or Essex (or both! - quite possible in my mother's case).

> the same pattern held in the opposite direction.

That seems like a really awkward way to describe the observation.

Wouldn’t the “same” pattern be if the increase was due to greater uptake in the opposite sex.

> girl's names are more dynamic

The linguist in me can't decide if girl names are more dynamic (there are more options) or less dynamic (they don't get used for boys as often).

Names, appearance, gender-related behavior is generally more fluid for females in America currently.

A different somewhat topic-related comment: I have a friend named Darakshan -- he took up his Sufi name (his birth name was David). Darakshan is generally considered a female name in Persian-Urdu culture -- I don't know whether he and his American Sufi friends who gave him that name were aware of that ... not that it matters; it does suit him. ("Bright," "shining," "radiant," "brilliant," or "luminous")

I was thinking about this in terms of products recently. Gendered products tend to move from men to women, but rarely the other way around. High heels, Chuck Taylors, motorcycles, etc.

Some products do move the other way but it is a slow process: massages, wet wipes (Dude Wipes anyone?), manicures, etc. But I think a good majority of products marketed to women have a much harder time crossing over.

I get the sense that most of the “needlessly gendered” products out there are attempts to make products permissible for men.
Not sure if this is universal, but when my wife and I were thinking about naming our son, we observed that in Spain there seems to be much more variety of girl than boy names.

In fact, you can almost prove it by bijective mapping to a subset. Almost all typical boy names have a feminine version (Juan->Juana, Carlos->Carla/Carlota, Manuel->Manuela, Adrián->Adriana, and so on... there are some exceptions, but not many) while the opposite is not true, there are plenty of common girl names without masculine version (Laura, Marta, Elena, Carmen, Sara, and many others).

There are also papers doing the actual stats and concluding that girl names are more diverse. No idea what the reason is.

Same here in Denmark. There are currently 28,054 approved girl names, 22,607 approved boy names, and 1,581 approved unisex names.

Comrade Adam is keeping an eye on the lists and is posting highlights whenever new names are approved: https://kammeratadam.dk/keyword/godkendtefornavne

"Billiee"

A name that really begs to be screamed out loud

> approved

What? The state gets to choose which name can you freely give your child?

> No idea what the reason is.

In many western cultures [1] it was (still is, but to a much lesser degree) customary for boy's (especially for the eldest) names to be hereditary. This gives natural tendency for the set of "traditional" boy names to be self reinforcing: remain more closed and maintain relative relevance. There are simply less boys to play with naming.

On top of that, it was common for the eldest son to inherit the estate and produce more offspring, while the younger were much more likely to be enlisted and as a result suffer from early-adulthood mortality. This further reinforces the traditional names.

I wonder how these statistics would look like if it was possible to control for these effects. Maybe look at variety of names among fallen soldiers versus the general population with some time lag?

> Almost all typical boy names have a feminine version

If I were to warrant a guess, I would say this is to quite a large degree an effect of the first-born being a girl and getting a feminized version of the hereditary name.

[1]: https://xkcd.com/285/

Stevie is a girl's name now?
Don't be silly.

Moon Unit is a girls name.

Stevie is a nickname for the sweetener Stevia.

Now? Let me introduce you to Stevie Nicks.
In the US, boys would abbreviate Stephen or Steven to Steve. Stevie only for a young boy.

I’m not sure what they are measuring here though - if it’s only birth certificates then I’m sure Stevie is dominated by girls for a long time.

As somebody born with the name Steven I'm curious about the relative popularity of "Steven" vs. "Stephen".

I feel like when I was a child more people were present with a PH, but nowadas virtually nobody. Most of the Stephens I know are "old", and I think "Steve" won.

But no doubt it varies on country, and who you know.

(I legally changed my name from Steven to Steve, a couple of years ago, because it was the only name I'd ever used and it got too tiresome dealing with my official passport, and ID saying one name when I signed/wrote another name on all my official paperwork. To the extent that employers would book flights in one name but my passport was in the other name, cue much hilarity at boarding time..)

My biggest WTF on this (as a foreigner) was the late Lindsey Graham. I always knew Lindsey/Lindsay as a female name.

Either way, peeking through the list, seems to me names which end with a vowel are usually feminine. However, there's a caveat: names end up shortened, and over time even those get shortened.

'Brit', 'Britney' for 'Brittany'.

'Gerry' or 'Geri' or 'Ger' for 'Gareth' (Dutch variant: 'Gerrit'),

'Pat', 'Patty' for 'Patrick', 'Patricia'.

'Pen', 'Penny' for 'Penelope'

'Ash' for 'Ashley'.

'Tash' or 'Tasha' for 'Natasha', 'Nata(s)cha' (a variant of Nathan/Nathaniel?)

'Toni', 'Tony', or 'Ton' for 'Antonia', 'Anton', or 'Antonius'.

Skimming through the quick examples I came up with, one thing stands out: if it ends with an 'a', feminine. I believe this stems from Latin? It also appears Brittany is a very British example, whereas say 'Tony' stems from a Catholic background. People with that background get very traditional names, but they're always practically shortened. Annoyingly, you'd have to mention your complete name on say a form, but otherwise you get a wider choice since you have like three names, and they're relatively long so more variety to pick from.

The one that always trips me up is when a man is a Stacey.
I had to call a customer once whose name was Courtney and it tripped me up when it turned out to be a male..
Growing up in the rural midwest, I had no idea Tracy could be a dude's name until I worked with one. (Great guy, btw.)
I learned who Tracy Morgan was from Tracy Jordan on 30 Rock. Only Tracy I know of, male or female, so it always felt masculine to me.
Tracy W. Bush, composer and sound designer for Warcraft <3
When I was younger, there was a couple of somewhat-distant relation who would show up occasionally to family events.

Their names were Kim, and Pinky. Kim was the wife and Pinky was the husband.

Andrea, Simone, Nicola, Michele, Daniele in Italian are all male names, but English speakers would probably assume the person is female from the name alone.
True, good native and traditional cultutal exceptions of a rule of thumb. Speaking for myself (NL) we have a small amount of Italian names and heritage (also due to Catholicism), and say NYC would have much more Italian descendants.

Also, as someone who saw quite some football (non-US version), I ofcourse am familiar with a lot of names. For example, Andrea Pirlo. We also learn some via history at school, since Italy plays a prominent role in Europe's history. Regarding Nicola, people might be familiar with Nikola Tesla (the 'c' in this case, sounds like 'k') and it is just a variant of 'Nico', 'Nicole', 'Nicolas'. Then there's some dude at FIFA, 'Gianni' which is a variant of 'Jean', 'Jan', 'Jeanne', 'Janet', 'Jannie', 'Janine', etc. I could go on about Gianluigi Buffon...

What I just remind myself with regards to Italian is it tends to add a vowel at end of a word or name, but it often doesn't sound same in English or my native tongue (Dutch).

Andrea (on-dre-ah vs and-ree-ah) is a true name collision.

Michele and Daniele look like misspellings of Michelle and Danielle though. I don't know any women named Daniele or men named Danielle.

My name is Daniele (I'm from Italy), and I've been living in NY for a while. My real estate attorney name was Daniele as well (she's a woman,) it was extremely confusing at closing time.

Also, fun fact, I got invited to a ton Women in Tech stuff. I even got recruited to a company that was proud of having > 50% women in their teams. I assume that was because I was working on an OSS project (Chromium) and I had no avatar there.

> Andrea (on-dre-ah vs and-ree-ah) is a true name collision.

What do you mean? The Italian male name Andrea and the English female name Andrea aren't unrelated names that happen to be spelled the same way. They are one and the same name, both derived from the Greek word for "man"; the Italian name has managed to remember that it's overtly masculine and the English name has forgotten this.

I mean that you can look at Daniele or Danielle and guess if it's an Italian guy or an American girl. You can't do the same for Andrea.
Danièle is the French spelling of the female name. It should have an accent, but in the US those get dropped regularly.
Both are pretty rare now, but Danielle is the more common spelling. It also matches the way the -elle is used as a suffix in many diminutives (e.g., cervelle, ruelle, passerelle)
Is -elle still a living suffix in French? I was under the impression that -ette is the standard.

-elle is pretty clearly descended from one of the usual Latin diminutives (also visible in e.g. Spanish tortilla). -ette seems to come from a much rarer one?

There's a fun map on Spanish wikipedia of which diminutive forms are preferred in which parts of Spain: https://es.wikipedia.org/wiki/Archivo:Diminutivos_del_espa%C...

They are only indirectly derived from the word "andros" = man.

They are directly derived from the feminine Greek word "andreia", meaning "courage" or "virility", which had been derived from "andros", as supposedly a quality typical for males.

It is the Italian name which has forgotten that originally it was a feminine word, not the English, which has preserved the original grammatical gender.

In Indo-European languages, most of the nouns denoting qualities have the feminine grammatical gender, so "andreia" is not an exception.

> It is the Italian name which has forgotten that originally it was a feminine word, not the English, which has preserved the original grammatical gender.

That's not really what I said. The name is a masculine name. You can name your son "virility" without problems. If you try to do that to your daughter, you're going to have problems. The grammatical gender of the word is a separate concern.

And virility literally means manliness or manhood, and by extension physical qualities ideally associated with men. Romans had another concept, virtue, for manly mental qualities. Ancient Greek "andreia" covered both aspects of manliness.

Andrea as a female name is similar to Carla or Caroline. Take a name that means something related to men (but no longer obviously so) and adjust it a bit to make it a female name. As a male name it just reflects changes in pronunciation over time.

> I don't know any women named Daniele or men named Danielle.

I wouldn’t be surprise to meet a (female) Daniele. The second L is already dropped somewhat regularly in Michelle. Which is interesting because it came from the French, but since then the French spelling drifted to "Michèle" (and then more or less fell completely out of fashion, and then seemed to come back for a while). In any case, both are pronounced exactly the same way.

"Andrea" is at its origin a feminine Greek word, but because its meaning is "courage" or "virility", in many places it became a name given to males.
Yes, I would assume those are feminine names.

The closest English male names to your examples are Andre/Andrew, Simon, Nicholas/Nick, Michael/Mike, Daniel/Dan. Gianni is John, etc

Around here, all of these would be male with the last vowel removed and female with it.
In general, English speakers seem not to be used to pronounce a word that ends with a non-silent letter e. Every time they pronounce my name like Danielle, I tell them it's Daniele (dah-NYEH-leh), and they go: dan-YELL, right? I tell them to say Daniel/Dani or anything that gets my attention. They seem to care more about the correct pronunciation of my name then I do, and then they botch it badly. :D

Many other Italian words that end with the letter E are changed to I, or mispronounced.

Ends in 'a' = female: a relatively safe assumption, as far as an assumption here can be safe, with no other context. A strong majority in many places will match that. Many of the exceptions will be obviously foreign names, which can go either way (may follow that culture's patterns, may not, highly varied).

Ends in vowel = female: probably mostly true, in that it may be >50%, but it's unreliable enough that I'd avoid trying to base any assumptions off it.

Names really follow no rules at all here. For both good and bad. E.g. most recently I ran across a "La-sia" pronounced "ladashsia". If it's spelled vat-ik'Nff and pronounced "King George" and they're female, then that's what's correct.

> Many of the exceptions will be obviously foreign names with traditional spelling, which can go either way

Or the names of biblical prophets like Ezra or Elisha. Not very popular today but you can find a lot of them in 19th century records.

Those names were longer in their original form, so none of them ended in "-a", but in English one or more letters were dropped, resulting in the "-a" termination.

E.g. Ezra was Esdras in Greek and in Hebrew it probably ended in "-ahu", while Elisha was Eliseus in Greek and in Hebrew it ended in ayin after the "-a-".

I mostly agree, but for example Andrea https://en.wikipedia.org/wiki/Andrea is a masculine name in Italian and a feminine name in Spanish. Here in Argentina it's mostly masculine, but if someone has many Italian ancestors, it may be masculine.

> It is part of the Italian male names ending in a, some others being Elia (Elias), Enea (Aeneas), Luca (Lucas), Mattia (Matthias), Nicola (Nicholas), Tobia (Tobias).

The masculine/feminine question of the name Andrea is made weirder by the fact it literally derives from the Greek word for ‘adult male’ (andros)
More likely it is not derived directly from "andros", but from the feminine noun "andreia", which means courage or virility.

So the original grammatical gender was feminine, hence the -a termination.

(comment deleted)
> Ends in 'a' = female: a relatively safe assumption, as far as an assumption here can be safe, with no other context. A strong majority in many places will match that.

Which places? I guess I ask because your next sentence:

> Many of the exceptions will be obviously foreign names with traditional spelling

Which makes me wonder if you meant "US places", because I can think of a few male names, which maybe categorised as "foreign" if you're in the US, that end in "a".

e.g. Csaba (pronounced "Chubba") is a reasonably common Hungarian name.

And some not so "foreign" ones, albeit mostly with Biblical roots, like Joshua and Ezra.

Indo european languages mostly, probably
The names with Biblical roots did not end in -a in their original form, but in most cases their termination was "-ah". The final consonant was usually dropped in English, resulting in the "-a" termination.
Given this is a thread on a post about US names, in reply to a foreigner remarking on the difficulty of names in the US:

Yes, I was referring to places in the USA.

Lindsey (as well as Ashley, Tracy, Kelly, among others) are all, I believe, last names that became given names. They skewed female over time because they end with a vowel.

Ashley Williams is the name of two American actresses as well as two male soccer players (Welsh and Liberian) and a male boxer (also Welsh).

Don’t forget Ashley Joanna Williams
When I was a kid, I was very confused by the names of Fleetwood Mac band members. It really threw me for a loop that they had a Lindsay who is a dude, and a Stevie who is a girl, both counter to my intuition about names.
Stevie is Stephanie which has always been very much a girl's name. Abbreviations have a tendency to collide.
> Stevie is Stephanie which has always been very much a girl's name. Abbreviations have a tendency to collide.

Maybe, I guess. That would be one of those "abbreviations" like "Peggy" ("abbreviating" Margaret) that doesn't actually abbreviate the name, and you just have to know that someone out there thinks it's related.

"Stevie" for "Steven" follows the ordinary rules of English. For "Stephanie", you'd expect "Steffie".

There was a boy in high school named Ash (he was probably class of 2002). He tried hard to not let anyone know it was short for Ashley.
Ash is a robot.
Ash is a pokemon trainer. (I watched Alien and still had to search up your comment)
My classmate's older brother was named Ashley, and the story was that when he showed up at the state university he was assigned to a female dorm / floor.
I’m guessing he decidedly didn’t change it as fast as he possibly could.
And I'm a guy named Ashley who hates being called Ash. Takes all kinds.
Their parents were probably fans of American writer Margaret Mitchell's most famous novel.
IDK about the politician, but I bet 80% of the Lindsey’s out there are named after the Fleetwood Mac guitarist, so obviously that name transcend any petty gender limitations.
Also all the Stevies in the same generation.
Gotta mention Lindsey Buckingham.

(Way underrated)

Ambiguous couple names are always a challenge. I indirectly know of a Tony and Dawn. Or is it Toni and Don? I can never remember which is which.
Knock three times on the ceiling if you want to find out.
Yes, it stems from Latin. See Latin's case declension tables [0]

In Spanish and Portugese, -a is a feminine suffix and -o is masculine; that's where we get Patricio vs Patricia.

There are very few female names that end with -o and very few male names that end with -a in Spanish.

Another example is -ine in Joseph/Josephine. -ine/-ino/-in is a feminizing suffix in German and a diminutive in Spanish and French, that's why it's a femenine suffix in names. In English we have hero vs heroine.

[0]: https://dcc.dickinson.edu/grammar/latin/case-endings-five-de...

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There are a few common Italian male names end in -a, though.

Andrea, Luca, Nicola are the most common.

Aren't most of these cases of dropping the final s and maybe a vowel from a latin names instead of adding a diminutive a?

Andreas Lucas Nicolas, etc. (perhaps with different spelling in Latin)

> Aren't most of these cases of dropping the final s

Yes, but also because those names were originally Greek.

All masculine names in Italian that end with -a come from Jews, old testament, with the exceptions of Enea and Nicola.
All three examples in GP are ancient Greek origin.
In a similar vein, the way women's names get shortened into a plethora of variants never ceases to surprise me

Elizabeth

Eliza, Liz, Liza, Lisa, Beth, Betty

And as memorialized in a movie and TV series, Buffy.
In the case of Elizabeth, it was likely just so common at one time that many variants were needed. Also Mary (you mightn't think there are many variants of Mary, but, for instance, Polly is a variant of Mary. Figure that one out.) At one time, pretty much every family in Ireland had at _least_ one child called Mary. Sometimes more than one. This ultimately resulted in Ireland having two consecutive presidents called Mary (and in the 2011 election, which lead to Ireland's first non-Mary president in 20 years, two of the candidates were also called Mary or variants thereof). The Marys have now largely aged out, and there were no candidates called Mary at all in the most recent election.
Gerry is also short for Gerald sometimes.

Tony in the US is often short for Anthony.

Chris, Kris, or Cris can be short for Christina, Kristina, Kristofer, Christopher, Kristian, Kristian, Christy, Krista, or Kristi. Sometimes you'll see Crys, Chris, Krys, Kris, or Cris for Crystal/Cristal/Chrystal/Krystal.

You'll also sometimes see Christopher shortened to Topher or to Kit.

Tony is also common in the UK. Anton in parts of South Asia.

Chris can be short for Christian.

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Medieval rhyming stuff. Robert -> Rob. Richard -> Dick. Edward -> Ned.
Also the G in William is silent.
I feel like you were getting dangerously close to tragedeigh there.
> Gerry is also short for Gerald sometimes. > > Tony in the US is often short for Anthony.

These two are incredibly common in the UK. You will occasionally see Ant (as in And & Dec TV presenters) but almost no one uses Anthony, they are usually all Tonys.

The female short names is usually spelt Toni, but pronounced the same.

-a became the most common final letter for girls names in the U.S. only in 1936! Before that, it was -e.
Surprised to not see "Jordan" in there, it's the first one that came to my mind.
A name I was surprised by was someone I know naming their daughter Miles/Myles, which is such a male name in my mind. It might even be based on the Latin word for soldier. It's not one I've seen used for a girl anywhere else, yet.
Edited slightly for series spoilers:

> "Well, I wish you every joy," Miles went on [...] He managed a wink. "Name the first one after me, eh?"

> [She] grinned. "I'm not sure she'd appreciate that. Milesanna? Milesia?"

> "Milesia sounds like a disease," Miles admitted, taken aback. "In that case, don't. I wouldn't want her to grow up hating me in absentia."

-- Memory (1996) by Lois McMaster Bujold

Wow. Kind of blast from the past. I haven't read that btw, how good is it?
I'm obviously a biased source, but I metaphorically keep the Vorkosigan books [0] in a similar place with (the more-famous) Discworld series by Terry Pratchett. Fun reads to return to that I find very quotable.

Interestingly, the first few books are about Miles' parents, but it's neat to see what the most popular character does/doesn't inherit.

[0] https://en.wikipedia.org/wiki/Vorkosigan_Saga

Not sure if they person you know is a millennial, but I have noticed of this (my) generation that they love not only gender-ambiguous names, but to name girls with decidedly male-coded names.
> It might even be based on the Latin word for soldier.

It isn't!

https://en.wiktionary.org/wiki/Miles

>> From Old French given name Milo, of problematic origin, possibly from an unknown Germanic element, or a short form of Slavic names beginning with mil- "grace, favor". The English form is associated by folk etymology with Latin mīles ("soldier").

It would be nice to know that the Old French name didn't secretly happen to match the hypothetical Old French form of the Latin word for soldier. I sadly don't personally know how to check what form miles, militis would have taken in Old French.

A good heuristic, though, is that if the French name had come from this very common Latin word, someone would have already thought of that (as has in fact happened many times) and it would have been thoroughly investigated. The evidence in support must be somewhere between "wafer-thin" and "robustly contradicted by the known sound changes from Latin to French".

Good luck to the Perl function Text::GenderFromName()

Maybe it needs the birthday

I thought you must be joking. You were not!
I guess it's eternally stuck in the 90s. I didn't see Perl in a long time now. 10-15 years ago it was still everywhere.

edit: No, it's stuck in the 80s: "The data comes from a 5% sampling of Social Security card applications with dates of birth from January 1980 through December 1989"

https://metacpan.org/pod/Text::GenderFromName#REGARDING-THE-...

At what age are social security numbers issued? Folks born in 1989 weren't adults until the 2000s
https://www.ssa.gov/faqs/en/questions/KA-01969.html

> It is a good idea to apply for your child's Social Security number and birth certificate at birth. If you apply at the hospital, the state agency that issues birth certificates will share your child's information with us. Then, we will mail the Social Security card to you. If you wait to apply, there may be delays while we verify your child's birth certificate.

Now they are usually applied for (and issued) at birth because the IRS requires you to provide one for dependants you claim on taxes since 1987.

Before that, usually you got one when you needed one, when you started working.

I'm sure there are a few competing "Falsehoods programmers believe about names" out there by now.
Why did anyone even try and make this? It's fascinating what incomputable functions people try to shoe-horn into being computable.
That’s a silly function, why even try to quantify that?
But Jean (English name, like Jeannie) and Jean (French form of John) are entirely different names, with different pronunciations, that happen to share the same spelling.
Yep, my wife and I have the same middle name: Jean. I’m French and she’s British :)
I am curious how you define "entirely different", because where I am looking, all the names you mention have parallel etymologies, the same origins, and similar meanings. We find them with different pronounciations and many spellings, because of the regional languages spoken, but they were adopted into a multitude of languages from the same sources. So how do you consider them "entirely different"?
Sort of reminds me of the color swap of Pink and Blue for Men and Women.
You're the victim of misinformation.

In the past there were no hard associations between sexes and gender and it was possible to find boys wearing some pink clothing, but it was never the case that people associated pink with boys and blue with girls.

There are some limited examples that contribute to the misunderstanding. For example blue is often associated with the Virgin Mary and red (not pink) was considered a manly color often worn by warriors (e.g. the British, the Romans, etc).

It’s easy to confirm that what you’re saying is not so. Ask AI and you'll get specific citations of pink being recommended for boys in the early 20th century: “in the early 1900s, publication guides and trade journals—such as the June 1918 issue of Earnshaw's Infants' Department—recommended pink for boys and blue for girls.”
There are a few names I think are being confused. Jan, short for Janice is a female name, but Jan in Central / Eastern Europe as a form of John is masculine. Jean the female name and Jean the french male name are different.
Yeah immigration and mix of similar names from different languages could also be reasons for the (at least perceived) shifts.
Going by the peak time on the chart, Jean flipped over fast right about when Jean-Luc entered public consciousness.
I think that's an example of what he's talking about. Jean-Luc is pronounced "John Luke" whereas the feminine form is Gene. And similarly the male Jan is pronounced Yan.
I am not a native English or French speaker but the way I've heard Luke being said in UK/US English and the way I have heard the filmmaker's name pronounced that Luc doesn't really sound like Luke. I feel the u and c are shorter and subdued.
Yeah Jean is pronounced more like 'Jawn' but I just mean it's a clearly male name in either case, as opposed to Jean pronounced 'Gene' which is generally a female name, though oddly 'Gene' also pronounced the same is generally a male name.
I was going to say the same about Jean; I think that one at least is hard to really draw conclusions from without additional data like languages spoken at home.

Anecdotally, the boy->girl names are almost all very popular names where I've met multiple each of those across different ages, whereas the other two categories feel like they have a lot more down-list entries.

Gender change with the same pronunciation would be a difficult to compile but interesting refinement.
Kim is another good one - I've met several Korean men named Kim.

Though I'm not 100% sure they weren't using their family name as their everyday identity name (the Kims I met were not related).

Kim is also a shortened form of Joachim.
Kim actually is usually a family name, but it's written first.
Kim Jong Un, right :)

Very likely it's their family name. Kim is the most common family name in Korea. Most Korean given names are two characters (=2 syllables) and more difficult to pronounce and memorize for westerners. And because of the space inserted between two romanized syllables (Jong Un), they are often misunderstood as middle + given names.

In Britain we had the very famous MI6 Intelligence office Kim Philby who was also a Russian spy, he was a key part of the Cambridge Five spy ring.

What I didn't know until just now is Kim was just a nickname. He was Harold Adrian Russell Philby and apparently Nicknamed "Kim" after the boy-spy in Rudyard Kipling's novel Kim[2] which surely foreshadowed his career!!

[1] https://www.bbc.co.uk/news/uk-24803131

[2] https://en.wikipedia.org/wiki/Kim_Philby

Kim is the name of the protagonist of one of the most popular boys' novels of all time, and there are a number of examples of well known male Kims from the twentieth century.
Most of the names that flip over seem to be names associated with the gentry class, many of the names seem to be neutral, soft very inoffensive names.
Most surprising was "Mario" becoming shared. "Maria/Mario" seemed inherently gendered, based on the last letter.
Interestingly if I remember correctly they have different origins, Maria is a biblical name, while Mario comes from Latin (which can decline Marius to Maria, but that’s a different word)
Green to orange? Why not blue to pink? I know it is stereotypical, but it is the natural colouring.
Interesting data. Nightmare color scale for the colorblind.
Came here to say the same. Anyone doing data visualization should think long and hard before using something beside a line or bar chart. Almost everything else is worse in multiple ways.
If they used these chart types, though, it would be too obvious that the data doesn't tell the story they want it to!
Red and blue is so obvious for girls and boys, so I really wonder what made someone deviate from that??
What about Aaron -> Erin ?
Aaron is Hebrew and Erin is Irish. They just happen to sound the same.
Not when pronounced correctly as A-Aron
To my Irish ear, these are two completely different names, not even slightly similar. (They're also etymologically unrelated.) It blew my mind when discussions on r/namenerds revealed that many Americans consider these names similar or even identical.
For most of my (male) life, people misspelled my name Aaron as Erin fairly regularly. I think that has contributed to the confusion. I also used to get Arron, Airon, and other variants. The "A-A-Ron" skit has made a noticeable difference in recent years.
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There was a guy at my school named Hilary who got awful abuse for it. Always wondered why parents would do such a thing to a child.
Weird comment, given that it was, not long ago, a common name for a male.

I'd wager if it weren't for Clinton, most people would still associate it with men.

I suspect this is a big driver of the switch. Parents that do not want to give their boys a name that will cause issues later on.

Back in school it wasn't a problem, people knew "Loren" was male, "Lauren" was female. Now, an awful lot of people don't. It's an uncommon enough name that even if you were around back when that's how it worked you very well might not have known it.

As an adult I routinely get misgendered, but it's a so-what to me.

Loren adjacent. In high school my girlfriend was Lauren and mine is Lorin. Friends over pronounced our names to differentiate. It doesn’t bother me to get misgendered, either. It never lasts past hearing my voice or seeing me, though.
I went to school with someone named Loren. She was female, and the name didn't rhyme with Lauren; it was stressed on the final syllable.
As someone with an pretty unusual name, I think kids will always find a reason to make fun of you and it isn't always just the name.

True Story: My mom was a 2nd grade teacher for 30 years and in the 70s had a student with very 'hippie" style parents. They named their son Log Cabin. You can imagine how that went over in elementary school.

Did he have a brother named Sue? If so, I might know the reason ...

> And he said, "Son, this world is rough

> And if a man's gonna make it, he's gotta be tough

> And I knew I wouldn't be there to help ya along.

> So I give ya that name and I said goodbye

> I knew you'd have to get tough or die

> And it's the name that helped to make you strong."

Johnny Cash - A Boy Named Sue

Hilary is a boys name that became a girls name. It is also a surname (although the latter usually has a double L).
Hilary is an interesting case because, in the data the article is looking at, there are only 5 total years where there were more M Hilarys than Fs: 1936-1941. And even in 1936 the M:F Ratio was only 28:9 (that's not a reduced fraction; the total count was 37). If it's true that Hilary was once a popular boys name, the evidence for that claim is not in the SSA data.
I think that data only goes back to 1936? its too recent.

It may also have been more popular in the UK than the US.

I was very much shocked to see a feminine version of my name used IIRC on Dead Or Alive 4 (DOA4), not knowing the backstory: I think it was a character called Leon was promising to avenge his dead girlfriend, Rolande.

I've wondered if the women that have carried the name have liked it? In my mind, it's always sounded very blunt so as to be feminine, but I recognize I'm heavily biased when it comes to my own name.

I’d be curious if men with female names get rejected out of a lot of job interviews since the employer may have thought they chose a female for DEI and then a man shows up?
Probably more likely that they don't get the interview because the person reviewing their CV assumed they were a woman...
Ha, you had me at "person". As if people review resumes anymore!
Most interesting thing that stands out to me is the number of names that appear to be what I would consider an abbreviation of a more traditional name.

e.g. “Pat” is cited, but doesn’t specify whether that refers to Patricia or Patrick.

I'm just really surprised that 21% of Lynn's are boys.
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Super informative article.

I've noticed more girls are being named Parker these days. My 1yo son is named Parker. He's holding the line.
He can't lose!
I don't know why but the very specific episodes of when he buys a convertible and when he gets his friend to break his video game addiction still live rent free in my head. I can't remember anything else about the series.
Parker Lewis came out during my blunder Years, he was a role model. He was that kid just a few years older who had it all figured out. I buttoned my shirts to the adam's apple like Parker Lewis. I styled my hair like him.