scission (n.)youdaoicibaDictYouDict[scission 词源字典]
"act of cutting or dividing," mid-15c., from French scission (14c.), from Late Latin scissionem (nominative scissio) "a cleaving, dividing," noun of action from past participle stem of Latin scindere "to cut" (see shed (v.)).[scission etymology, scission origin, 英语词源]