corroborate

[v. kuh-rob-uh-reyt; adj. kuh-rob-er-it]
verb (used with object), corroborated, corroborating.
1.
to make more certain; confirm: He corroborated my account of the accident.
adjective
2.
Archaic. confirmed.

Origin:
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

corroborative [kuh-rob-uh-rey-tiv, -er-uh-tiv] , corroboratory, adjective
corroboratively, corroboratorily, adverb
corroborator, noun
noncorroborating, adjective
noncorroborative, adjective
noncorroboratively, adverb
noncorroboratory, adjective
uncorroborated, adjective
uncorroborative, adjective
uncorroboratively, adverb
uncorroboratory, adjective

collaborate, corroborate.


1. verify, authenticate, support, validate.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
corroborate
 
vb
1.  (tr) to confirm or support (facts, opinions, etc), esp by providing fresh evidence: the witness corroborated the accused's statement
 
adj
2.  serving to corroborate a fact, an opinion, etc
3.  (of a fact) corroborated
 
[C16: from Latin corrōborāre to invigorate, from rōborāre to make strong, from rōbur strength, literally: oak]
 
corrobo'ration
 
n
 
corroborative
 
adj
 
cor'roboratory
 
adj
 
cor'roboratively
 
adv
 
cor'roborator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

corroborate
early 16c., "to give (legal) confirmation to," from L. corroborat-, pp. stem of corroborare "to strengthen, invigorate," from cor- (see com-) "together" (perhaps here intens.) + 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 (1822); corroborating (1520s); corroborative (1580s).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
And then, as corroborative reports reached us from more and more places, it took an ominous turn.
Answer, which economist fails to provide, is one is only allowed to be treated as such only at extremely corroborative situations.
Much of the testimony, however, was merely corroborative of what has already been given.
Intent is defined here as a clear statement of plans in addition to other evidence and/or corroborative statements of others.
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