Etymology Explorer › English

Where does “poisonous” come from?

Poisonous comes from Middle English poisounous, meaning toxic or deadly.

poisonous (English): Containing sufficient poison to be dangerous to...

Definitions

  1. Containing sufficient poison to be dangerous to...

Ancestry of “poisonous”, step by step

StepLanguageWordMeaning
1Middle Englishpoisounous—

Words derived from “poisonous”

  • poisonously
  • nonpoisonous
  • poisonousness
  • unpoisonous
  • autopoisonous
Every word from Middle English poisounous →