hellebore

From 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.