Pact (păkt), n. [L. pactum, fr. paciscere to make a bargain or contract, fr. pacere to settle, or agree upon; cf. pangere to fasten, Gr. πηγνύναι, Skr. pāça 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.