cession (n.)youdaoicibaDictYouDict[cession 词源字典]
late 14c., "a relinquishing," from Old French cession "cession; death" (13c.), from Latin cessionem (nominative cessio) "a giving up, surrendering," noun of action from past participle stem of cedere "to go away, yield" (see cede). Related: Cessionary.[cession etymology, cession origin, 英语词源]