Word Study
comfrey
CIDE DICTIONARY
comfrey, n. [Prob. from F. conferve, L. conferva, fr. confervere to boil together, in medical language, to heal, grow together. So called on account of its healing power, for which reason it was also called consolida.].
A rough, hairy, perennial plant of several species, of the genus Symphytum . [1913 Webster]
" A decoction of the mucilaginous root of the “common comfrey” (Symphytum officinale ) is used in cough mixtures, etc.; and the gigantic “prickly comfrey” (Symphytum asperrimum ) is somewhat cultivated as a forage plant." [1913 Webster]
OXFORD DICTIONARY
comfrey, n. (pl. -eys) any of various plants of the genus Symphytum, esp. S. officinale having large hairy leaves and clusters of usu. white or purple bell-shaped flowers.
Etymology
ME f. AF cumfrie, ult. f. L conferva (as COM-, fervere boil)
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