Definition of "eir"
eir
determiner
(rare, nonstandard) Belonging to em, gender-neutral third-person singular possessive adjective, equivalent to the singular their and coordinate with his and her.
Quotations
If a mobile user is far from eir home area, ey will pay a long-distance fee for carriage of the call *from* eir home area, just as a caller would pay long-distance on a call *to* that area.
1997 November 25, Scott Robert Dawson, “Who Pays for Cellular Calls”, in alt.cellular (Usenet), message-ID <[email protected]>
“You idiot girl! Are you childsick?” She grabbed Asu’s wrist; Asu made no effort to twist away. “Sand and soil, tell me you’re not pregnant. Is it that—what’s eir name? Aeran? Have you lain with em? Tell me!” / […] / Empre waded out to help them cross the last stretch. More people, a few hundred, perhaps, had gathered along the shore. One of them came running at Melu with a cry—she threw up her arms in defense. But it was Aeran, only Aeran. E seized Asu and clasped her close, eir eyes closed tightly as e sobbed eir relief.
2023, Aimee Ogden, “A Half-Remembered World”, The Magazine of Fantasy & Science Fiction, vol. 145, no. 1-2, whole no. 768 (July/August 2023), pages 146-202