Apportion \Ap*por"tion\, v. t. [imp. & p. p. Apportioned; p. pr. & vb. n. Apportioning.]

[OF. apportionner, LL. apportionare, fr. L. ad + portio. See Portion.]

To divide and assign in just proportion; to divide and distribute proportionally; to portion out; to allot; as, to apportion undivided rights; to apportion time among various employments.

Source: Webster's Revised Unabridged Dictionary (1913)