With acted fear the villain thus pursued.
Dryden.
To act a part, to sustain the part of one of the characters in a play; hence, to simulate; to dissemble. -- To act the part of, to take the character of; to fulfill the duties of.
Act, v. i. 1. To exert power; to produce an effect; as, the stomach acts upon food.
2. To perform actions; to fulfill functions; to put forth energy; to move, as opposed to remaining at rest; to carry into effect a determination of the will.
He hangs between, in doubt to act or rest.
Pope.
3. To behave or conduct, as in morals, private duties, or public offices; to bear or deport one's self; as, we know not why he has acted so.