peony

From Old English peonie, peonia et al., from Latin paeōnia; later reinforced by Anglo-Norman peonie, Old French peone, pyoine (French pivoine), from Latin paeōnia, from Hellenistic Ancient Greek παιωνία (paiōnía), from Ancient Greek Παιών (Paiṓn, “Paeon, the physician of the gods”)/παιών (paiṓn, “a physician”).

来源：wiktionary