(1):
(v. t.) To act the part of; to represent; to play.
(2):
(v. t.) To decree; to establish by legal and authoritative act; to make into a law; especially, to perform the legislative act with reference to (a bill) which gives it the validity of law.
(3):
(v. t.) To act; to perform; to do; to effect.
(4):
(n.) Purpose; determination.