resignation (n.)youdaoicibaDictYouDict[resignation 词源字典]
late 14c., "act of resigning" (an office, etc.), from Old French resignation (14c.) and directly from Medieval Latin resignationem (nominative resignatio), noun of action from past participle stem of Latin resignare (see resign). Meaning "submission, acquiescence" is from 1640s.[resignation etymology, resignation origin, 英语词源]