Meaning

noun perennial herbs of the lily family having thick toxic rhizomes

noun any plant of the Eurasian genus Helleborus

originFrom Middle English ellebore, from Old French ellebre, elebore, from Medieval Latin eleborus, via Latin from Ancient Greek ἑλλέβορος (helléboros), possibly from ἄλκη (álkē, “elk [moose]”) βιβρώσκω (bibrṓskō, “to eat”). The initial h was restored in English to reflect the Ancient Greek etymology.

Etymology from Wiktionary, CC BY-SA 3.0