From Middle English aye, ai, agg, from Old Norse ei, ey, from Proto-Germanic *ī́ui (“ever, always”) (compare Old English ā, ō, Middle Dutch ie, German je), accusative of *aiwaz (“age; law”) (compare Old English ǣ(w) (“law”), West Frisian ieu (“century”), Dutch eeuw (“century”)), from Proto-Indo-European *h₂eyu- (“long time”) (compare Irish aois (“age, period”), Breton oad (“age, period”), Latin ævum (“eternity”), Ancient Greek αἰών (aiṓn)).
Probably from use of aye as expression of agreement or affirmation, or from Middle English a ye (“oh yes”). More at oh, yea.
- An affirmative vote; one who votes in the affirmative.
- "To call for the and nays;" "The have it."
aye was also found in the following language(s): Scots