: a Eurasian St.-John's-wort (Hypericum androsaemum) from which a healing salve is made in Spain
Word History
Etymology
Middle English totsane, toutsayne, from (assumed) Middle French toute-saine (whence French), from toute (feminine of tout all, from—assumed—Vulgar Latin tottus, alteration of Latin totus) + saine, feminine of sain healthy, from Latin sanus healthy, sane