† ˈpoisonmentObs.rare—1. [f. poison v. + -ment: cf. F. empoisonnement.] The act of poisoning; in quot., a means of poisoning, poison. c1470Harding Chron. ccx. v, Some in his sherte put oft tyme venemyng, And some in meate and drinke great poysonement; Some in his hose, by great ymagenement.