comfrey
/ˈkʌmfrɪ/noun
(pl. -eys)
1- a Eurasian plant of the borage family, which has large hairy leaves and clusters of purplish or white bell-shaped flowers合生花。
词源
Middle English: from Anglo-Norman French cumfirie, based on Latin conferva, from confervere 'heal' （literally 'boil together', referring to the plant's medicinal use）.