stavesacre

n. [ Corrupted from NL. staphis agria, Gr. stafi`s dried grape + 'a`grios wild. ] (Bot.) A kind of larkspur (Delphinium Staphysagria), and its seeds, which are violently purgative and emetic. They are used as a parasiticide, and in the East for poisoning fish. [ 1913 Webster ]