"one who poisons or corrupts," late 14c., poisonere, agent noun from poison (v.). OED notes that in Australia and New Zealand it was used for "A cook, esp. for large numbers" (1905).
Entries linking to poisoner
poison v.
"to give poison to; add poison to; kill with poison," c. 1300, poisonen, from Old French poisonner "to give to drink," and directly from poison (n.). Figuratively, "to corrupt," from late 14c. Related: Poisoned; poisoning.
