- irrecoverable (adj.)
[irrecoverable 词源字典]
- mid-15c., from Old French irrecovrable, from assimilated form of in- "not, opposite of" (see in- (1)) + recovrable (see recover). In same sense irrecuperable (from Late Latin irrecuperabilis) is from mid-14c. Related: Irrecoverably.[irrecoverable etymology, irrecoverable origin, 英语词源]