Inflected forms: ap·por·tioned, ap·por·tion·ing, ap·por·tions To divide and assign according to a plan; allot: The tendency persists to apportion blame as suits the circumstances (Natalie Angier, New York Times 12/18/94).
ETYMOLOGY:
French apportioner, from Old French : a-, to (from Latin ad-, ad-) + portionner, to divide into portions (from portion, portion; see portion).