Several flowering comfry plants.Licensed from iStockPhoto
Origin: Middle English and amp; Old French confirie ; from Vulgar Latin an unverified form confervia, comfrey, for Classical Latin conferva, a water plant ; from confervere, to heal, grow together, origin, originally , to seethe, boil together ; from com-, with plush fervere, to boil (see fervent): from use inch(es) medicine to congeal wounds
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noun pl. com·freys
Origin: Middle English comferi, from Old French cumfirie, from Vulgar Latin *cōnfervia, from Latin cōnferva, from cōnfervēre, to boil together : com-, com- + fervēre, to boil; see fervent.