• synonyms


[verb kuh-rob-uh-reyt; adjective kuh-rob-er-it]
See more synonyms for corroborate on Thesaurus.com
verb (used with object), cor·rob·o·rat·ed, cor·rob·o·rat·ing.
  1. to make more certain; confirm: He corroborated my account of the accident.
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  1. Archaic. confirmed.
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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 formscor·rob·o·ra·tive [kuh-rob-uh-rey-tiv, -er-uh-tiv] /kəˈrɒb əˌreɪ tɪv, -ər ə tɪv/, cor·rob·o·ra·to·ry, adjectivecor·rob·o·ra·tive·ly, cor·rob·o·ra·to·ri·ly, adverbcor·rob·o·ra·tor, nounnon·cor·rob·o·rat·ing, adjectivenon·cor·rob·o·ra·tive, adjectivenon·cor·rob·o·ra·tive·ly, adverbnon·cor·rob·o·ra·to·ry, adjectiveun·cor·rob·o·rat·ed, adjectiveun·cor·rob·o·ra·tive, adjectiveun·cor·rob·o·ra·tive·ly, adverbun·cor·rob·o·ra·to·ry, adjective
Can be confusedcollaborate corroborate


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

collateral, supporting

Examples from the Web for corroborative

Historical Examples

  • Presently he saw that some corroborative evidence might exist.

    The Pit Prop Syndicate

    Freeman Wills Crofts

  • But nevertheless we should require some corroborative document.

    The Blonde Lady

    Maurice Leblanc

  • The testimony of this gentleman is corroborative of that already presented.

  • That the body was found without weight is also corroborative of the idea.

  • That was another and corroborative sign, clearer to him than printed capitals.

    Vittoria, Complete

    George Meredith

British Dictionary definitions for corroborative


verb (kəˈrɒbəˌreɪt)
  1. (tr) to confirm or support (facts, opinions, etc), esp by providing fresh evidencethe witness corroborated the accused's statement
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adjective (kəˈrɒbərɪt) archaic
  1. serving to corroborate a fact, an opinion, etc
  2. (of a fact) corroborated
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Derived Formscorroboration, nouncorroborative (kəˈrɒbərətɪv) or corroboratory, adjectivecorroboratively, adverbcorroborator, 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

Word Origin and History for corroborative



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.

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Online Etymology Dictionary, © 2010 Douglas Harper