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abdicate [abdicate 词源字典]: abdicate: see indicate
[abdicate etymology, abdicate origin, 英语词源]
abdicate (v.): 1540s, "to disown, disinherit (children)," from Latin abdicatus, past participle of abdicare "to disown, disavow, reject" (specifically abdicare magistratu "renounce office"), from ab- "away" (see ab-) + dicare "proclaim," from stem of dicere "to speak, to say" (see diction). Meaning "divest oneself of office" first recorded 1610s. Related: Abdicated; abdicating.
abdication (n.): 1550s, "a disowning," from Latin abdicationem (nominative abdicatio) "renunciation, abdication," noun of action from past participle stem of abdicare (see abdicate); sense of "resignation of sovereignty" is from 1680s.
abdicable: "Capable of being abdicated or renounced", Late 19th cent.; earliest use found in Webster's Dictionary English Language. From post-classical Latin abdicabilis able to be renounced from classical Latin abdicāre + -bilis.