Trēa'ty, n.

n. [Fr. traité, Pr. tractat, Sp. & Pg. tractado, It. trattato, Lat. tractatus. See TREAT.] 1. The act of treating for the adjustment of differences, as for forming an agreement; negotiation. He cast by treaty and by trains Her to persuade. Spenser.

2. An agreement, league, or contract, between two or more nations or sovereigns, formally signed by commissioners properly authorized, and solemnly ratified by the several sovereigns, or the supreme power of each State; an agreement between two or more independent States.
3. Solicitation; supplication; entreaty. [Obs.]
4. A treatise; a tract. [Obs.] Browne.