exuviae (n.)youdaoicibaDictYouDict[exuviae 词源字典]
"cast-off skins, shells, or other coverings of animals," 1650s, Latin, literally "that which is stripped off," hence "slough, skin," also "clothing, equipment, arms, booty, spoils," from stem of exuere "to doff," from ex- "off" (see ex-) + PIE *eu- "to dress" (also in Latin induere "to dress," reduvia "fragment").[exuviae etymology, exuviae origin, 英语词源]