Ok guys, uhh, hear me out.
I've seen this post a handful of times before, but now I've been thinkin.
Just like they said, there is a lack of androgynous counterparts if binary gendered words that 1) are not umbrella terms or 2) are not derived from nonbinary/enby and that honestly sucks.
So, I am suggesting a couple specific to nonbinary folks wording that were and were not originally proposed by me, in regards of man/woman and boy/girl.
For the androgynous for man/woman, specifically for people who are not willin to use enban/enben there is ferhman and ferhmen. I specifically like this one because the origin of the “ferh” part comes from old english “feorh” that can mean soul, living being or person.
And this one, that I specifically like because I kinda came up with the idea, is the androgynous for boy/girl: fer! It's short and it's one syllable with combines with the shortness of both girl and boy, somethin that ticked me off with enby as a counterpart. And I specifically think the plural is cute! Feries! It even makes a crescent order of plurals; boys (4 letters), girls (5 letters) and feries (6 letters).
Just noting that I did not exactly came up with the suggestions, outside of fer, because I'm generally spreadin the idea here. Feel inspired to come up with other androgynous language, I'd feel happy if you did so actually, because I'm tired of people not taking nonbinary language seriously and not making an effort to create with their own community.