pactn.[L. pactum, fr. paciscere to make a bargain or contract, fr. pacere to settle, or agree upon; cf. pangere to fasten, Gr. phgny`nai, Skr. pa bond, and E. fang: cf. F. pacte. Cf. Peace, Fadge, v.] An agreement; a league; a compact; a covenant.(Bacon.)The engagement and pact of society which goes by the name of the constitution. (Burke.)