- corroboration (n.)
[corroboration 词源字典]
- mid-15c., "strengthening, support," from Late Latin corroborationem (nominative corroboratio), noun of action from past participle stem of Latin corroborare "to strengthen" (see corroborate). Meaning "confirmation" attested by 1768.[corroboration etymology, corroboration origin, 英语词源]