n. & v.
n. 1 Relig. a solemn promise esp. in the form of an oath to God or another deity or to a saint. 2 (in pl.) the promises by which a monk or nun is bound to poverty, chastity, and obedience. 3 a promise of fidelity (lovers' vows; marriage vows). 4 (usu. as baptismal vows) the promises given at baptism by the baptized person or by sponsors.
v.tr. 1 promise solemnly (vowed obedience). 2 dedicate to a deity. 3 (also absol.) archaic declare solemnly. under a vow having made a vow.
[ ME f. AF v(o)u, OF vo(u), f. L (as VOTE): (v.) f. OF vouer, in sense 2 partly f. AVOW ]