The Collaborative International Dictionary
Venefice
Venefice \Ven"e*fice\, n. [L. veneficium, fr. veneficus poisoning; venenum poison + facere to make: cf. F. v['e]n['e]fice.] The act or practice of poisoning. [Obs.]
Wiktionary
venefice
n. (context obsolete English) The act or practice of poisoning.