hellebore

 
Pronunciation: /ˈhɛlɪbɔː/

noun

  • a poisonous winter-flowering Eurasian plant of the buttercup family, typically having coarse divided leaves and large white, green, or purplish flowers.
    • Genus Helleborus, family Ranunculaceae: several species, including the Christmas rose
  • a false helleborine.

Origin:

Old English (denoting various plants supposed to cure madness), from Old French ellebre, elebore or medieval Latin eleborus, via Latin from Greek helleboros