adv. & n. (also ay)
adv. 1 archaic or dial. yes. 2 (in voting) I assent. 3 (as aye aye) Naut. a response accepting an order.
n. an affirmative answer or assent, esp. in voting. the ayes have it the affirmative votes are in the majority.
[ 16th c.: prob. f. first pers. personal pron. expressing assent ]