*envenom*

v. t. [ imp. & p. p. Envenomed p. pr. & vb. n. Envenoming. ] [ OE. envenimen, F. envenimer; pref. en- (L. in) + F. venin poison. See Venom. ] 1. To taint or impregnate with venom, or any substance noxious to life; to poison; to render dangerous or deadly by poison, as food, drink, a weapon; as, envenomed meat, wine, or arrow; also, to poison (a person) by impregnating with venom. [ 1913 Webster ]

Alcides . . . felt the envenomed robe. Milton. [ 1913 Webster ]

O, what a world is this, when what is comely
Envenoms him that bears it! Shak. [ 1913 Webster ]

2. To taint or impregnate with bitterness, malice, or hatred; to imbue as with venom; to imbitter. [ 1913 Webster ]

The envenomed tongue of calumny. Smollett. [ 1913 Webster ]

On the question of slavery opinion has of late years been peculiarly envenomed. Sir G. C. Lewis. [ 1913 Webster ]