gamhainn

a year-old calf, a stirk, Irish gamhuin, a calf, Early Irish gamuin, pl.g. gamna, year-old calf; from gam, winter: "winter-old". For root, see geamhradh. Confirmed by the proverb: "Oidhche Shamhna, theirear gamhna ris na laoigh" - On Hallowe'en the calves are called stirks. Similarly and from the same root are Norse gymbr, a year-old ewe lamb, Scottish gimmer, Greek $$Ghímaros, a yearling goat (Dor.). Hence gamhnach, farrow cow.