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corroborate

[ verb kuh-rob-uh-reyt; adjective kuh-rob-er-it ]
/ verb kəˈrɒb əˌreɪt; adjective kəˈrɒb ər ɪt /
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See synonyms for: corroborate / corroborated / corroborating / corroborative on Thesaurus.com

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.

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Origin of corroborate

First recorded in 1520–30; from Latin corrōborātus, past participle of corrōborāre “to strengthen,” equivalent to cor- “with, together” + rōbor(āre) “to make strong” (derivative of rōbor, rōbur “oak” hence, “strength”) + -ātus past participle suffix; see cor-, robust,-ate1
collaborate, corroborate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for corroborate

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
corroboration, nouncorroborative (kəˈrɒbərətɪv) or corroboratory, adjectivecorroboratively, adverbcorroborator, noun
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
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