Obs. rare. [ad. med.L. trādiment-um (1190 in Du Cange), f. L. trādĕre to hand over, deliver; or a. OF. trade-, tradiment treason (Godef.).] Treachery, perfidy, treason.
1535. St. Papers Hen. VIII., II. 264. The Tholes entred by tradyment into Powers Courte. Ibid. (1536), 362. Beyng evicted, and recovered out of our possession by tradyment.
1561. T. Hoby, trans. Castigliones Courtyer, II. (1577), N j b. If it be true that it is such an abhominable profit and trespace to vse tradiment against a mans very enimy.