What is the ve pronoun?
There are several sets of pronouns that use "ve" in the nominative form, the earliest of which was created in 1970. In the 2019 Gender Census, 24 participants (0.2%) used a set of pronouns starting with ve.
Ve, ver, vis, vis, verself is the exact set used by Egan, Hulme, and Reynolds (see below). The set's date of creation and creator are not yet known.
Use in fiction
In Keri Hulme's mystery novel The Bone People (1984), a character is called by these ve pronouns.
Used by Greg Egan for non-binary gender characters-- including artificial intelligence, as well as transgender humans who identify as a specific nonbinary gender they call "asex"-- in his novels Distress (1995) and Diaspora (1998). Egan is sometimes credited with having created these pronouns, but it doesn't appear that he claims to have done so.
In Alastair Reynolds's science fiction novel On the Steel Breeze (2013) one character is called by these ve pronouns. The novel never gives any exposition about this character's sex, gender, or pronouns, and vis gender-neutrality doesn't influence the plot. The lack of remark gives the impression that a non-binary gender is unremarkable.
Forms:
Nominative
When I tell someone a joke ve laughs.
Accusative
When I greet a friend I hug ver.
Pronominal possessive
When someone does not get a haircut, vis hair grows long.
Predicative possessive
If I need a phone, my friend lets me borrow vis.
Reflexive
Each child feeds verself.