psoriasis (n.)youdaoicibaDictYouDict[psoriasis 词源字典]
1680s, from medical Latin psoriasis, in Late Latin "mange, scurvy," from Greek psoriasis "being itchy," from psorian "to have the itch," from psora "itch, mange, scab," related to psen "to rub" (see psilo-). Related: Psoriatic.[psoriasis etymology, psoriasis origin, 英语词源]