the (Big) Five Factor model of personality (standard psychology) measures sex-based population (density) differences, and shows up across cultures.
Merriam-Webster[1]:
> b: the behavioral, cultural, or psychological traits typically associated with one sex
> c: GENDER IDENTITY
American Heritage Dictionary[2]:
> b. One's identity as female or male or as neither entirely female nor entirely male.
O.E.D.[3]:
> b. The state of being male or female as expressed by social or cultural distinctions and differences, rather than biological ones
[1]: https://www.merriam-webster.com/dictionary/gender
Merriam-Webster 2018 says, sense 1 abc [gramatical gender] but sense 2 is all about sex.
>2a SEX ...
>2b the behavioral, cultural, or psychological traits typically associated with one sex
http://web.archive.org/web/20181125203538/https://www.merria...
it doesn't mention gender identity, but gender identity is a perfectly good word for gender identity.
I don't have access to the OED here but I'm sure we'd see a similar timeline.
Yes, yes, psychology is applied neurology is applied biology is applied chemistry is applied physics. And yet we have psychologists and neurologists and biologists and chemists and physicists and they all seem to believe they have different jobs.
Playing pointless semantic games doesn’t buy you any points.