Wiktionary
vb. (context transitive English) To distribute something in portions or shares; to apportion or allot
WordNet
Usage examples of "portion out".
It was his duty to remain at the Eyrie and portion out the tasks of other Star Men.
Try how the life of the good man suits thee, the life of him who is satisfied with his portion out of the whole, and satisfied with his own just acts and benevolent disposition.
The gelding, of course, also did not take note of such things, but he did suggest from across the way that I should move him to fresh grass, give him water, and portion out more grain.
Then next the several parts began to fly asunder and things to be joined like with like and to mark off the world and portion out its members and arrange its mighty parts, that is to say, to separate high heaven from earth, and let the sea spread itself out apart with its unmixed water, and likewise let the fires of ether spread apart pure and unmixed.
It only remains for me to portion out the punishment which is due to his evil conduct.
The medic squeezed the second portion out on a rock, from which the brach, shooting out a long, pale tongue, licked it in two passes.