Lewis & Short

vĕnēnārĭus, a, um, adj. [venenum], of or belonging to poison.

  1. I. Adj.: calix, a poisoned cup, Tert. Res. Carn. 16.
  2. II. Subst.: vĕnēnārĭus, ii, m., a poisonmixer, poisoner, Suet. Ner. 33; Petr. 39; Tert. Pud. 5 med.; App. M. p. 291, 8.