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[v. kuh-rob-uh-reyt; adj. kuh-rob-er-it] /v. kəˈrɒb əˌreɪt; adj. kəˈrɒb ər ɪt/
verb (used with object), corroborated, corroborating.
to make more certain; confirm:
He corroborated my account of the accident.
Archaic. confirmed.
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
[kuh-rob-uh-rey-tiv, -er-uh-tiv] /kəˈrɒb əˌreɪ tɪv, -ər ə tɪv/ (Show IPA),
corroboratory, adjective
corroboratively, corroboratorily, adverb
corroborator, noun
noncorroborating, adjective
noncorroborative, adjective
noncorroboratively, adverb
noncorroboratory, adjective
uncorroborated, adjective
uncorroborative, adjective
uncorroboratively, adverb
uncorroboratory, adjective
Can be confused
collaborate, corroborate.
1. verify, authenticate, support, validate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for corroborating
  • Our standards do demand our journalists to get corroborating sources and to call for comment before publishing a story.
  • The latest official version-leaked this month to foreign journalists without corroborating evidence-rings true.
  • So, you've posited a hypothesis with some corroborating evidence.
  • What they lacked, however, were enough corroborating observations to plot an accurate course for the asteroid.
  • He added that he had obtained corroborating evidence for vital parts of her story.
  • Another policeman eavesdropped on the attempted transaction, as corroborating witness.
  • Magma rising would need corroborating evidence, though.
  • But prosecutors conceded that that was unlikely because they lacked corroborating evidence in all but two of the cases.
  • Indeed, it requires either two witnesses or one witness and corroborating evidence.
  • But in the absence of corroborating information, he should be given the benefit of the doubt on this article.
British Dictionary definitions for corroborating


verb (kəˈrɒbəˌreɪt)
(transitive) to confirm or support (facts, opinions, etc), esp by providing fresh evidence: the witness corroborated the accused's statement
adjective (archaic) (kəˈrɒbərɪt)
serving to corroborate a fact, an opinion, etc
(of a fact) corroborated
Derived Forms
corroboration, noun
corroborative (kəˈrɒbərətɪv), corroboratory, adjective
corroboratively, adverb
corroborator, noun
Word Origin
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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Word Origin and History for corroborating



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
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