cleanse (v.)youdaoicibaDictYouDict[cleanse 词源字典]
Old English clænsian "to cleanse, purge, purify, chasten, justify," from West Germanic *klainson, from *klainoz (see clean (adj.)). Despite its modern spelling (16c.), it retains its Middle English pronunciation. Related: Cleansed; cleansing.[cleanse etymology, cleanse origin, 英语词源]