corroborate

[ verb kuh-rob-uh-reyt; adjective kuh-rob-er-it ]
/ verb kəˈrɒb əˌreɪt; adjective kəˈrɒb ər ɪt /

verb (used with object), cor·rob·o·rat·ed, cor·rob·o·rat·ing.

to make more certain; confirm: He corroborated my account of the accident.

adjective

Archaic. confirmed.

Origin of corroborate

1520–30; < Latin corrōborātus past participle of corrōborāre to strengthen, equivalent to cor- cor- + rōbor(āre) to make strong (derivative of rōbor, rōbur oak (hence, strength); see robust) + -ātus -ate1
Related forms
Can be confusedcollaborate corroborate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for uncorroborated

British Dictionary definitions for uncorroborated (1 of 2)

uncorroborated

/ (ˌʌnkəˈrɒbəˌreɪtɪd) /

adjective

(of evidence, a statement, etc) lacking confirmation or evidence

British Dictionary definitions for uncorroborated (2 of 2)

corroborate


verb (kəˈrɒbəˌreɪt)

(tr) to confirm or support (facts, opinions, etc), esp by providing fresh evidencethe witness corroborated the accused's statement

adjective (kəˈrɒbərɪt) archaic

serving to corroborate a fact, an opinion, etc
(of a fact) corroborated
Derived Formscorroboration, nouncorroborative (kəˈrɒbərətɪv) or corroboratory, adjectivecorroboratively, adverbcorroborator, noun

Word Origin for corroborate

C16: from Latin corrōborāre to invigorate, from rōborāre to make strong, from rōbur strength, literally: oak
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for uncorroborated

corroborate


v.

1530s, "to give (legal) confirmation to," from Latin corroboratus, past participle of corroborare "to strengthen, invigorate," from com- "together" or "thoroughly" (see com-) + roborare "to make strong," from robur, robus "strength," (see robust).

Meaning "to strengthen by evidence, to confirm" is from 1706. Sometimes in early use the word also has its literal Latin sense, especially of medicines. Related: Corroborated; corroborating; corroborative.

Online Etymology Dictionary, © 2010 Douglas Harper