exfoliate (v.)youdaoicibaDictYouDict[exfoliate 词源字典]
1610s, transitive; 1670s intransitive; from Late Latin exfoliatus, past participle of exfoliare "to strip of leaves," from ex- "off" (see ex-) + folium "leaf" (see folio). Related: Exfoliated; exfoliating.[exfoliate etymology, exfoliate origin, 英语词源]