eirs
pron/ɛəɹz/
Etymology From eir + 's, or by removing th from theirs.
1
Nonstandard, Possessive, Rare That which belongs to em, possessive case of gender-neutral ey or e, equivalent to the singular theirs and coordinate with his and hers.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.