verb (used with object), ver·i·fied, ver·i·fy·ing.
- to prove the truth of, as by evidence or testimony; confirm; substantiate: Events verified his prediction.
- to ascertain the truth or correctness of, as by examination, research, or comparison: to verify a spelling.
- to act as ultimate proof or evidence of; serve to confirm.
- to prove or confirm (an allegation).
- to state to be true, especially in legal use, formally or upon oath.
Origin of verify
1275–1325; Middle English verifienRelated formsver·i·fi·a·bil·i·ty, ver·i·fi·a·ble·ness, nounver·i·fi·a·ble, adjectivever·i·fi·er, nounnon·ver·i·fi·a·ble, adjectivepre·ver·i·fy, verb (used with object), pre·ver·i·fied, pre·ver·i·fy·ing.re·ver·i·fy, verb (used with object), re·ver·i·fied, re·ver·i·fy·ing.un·ver·i·fi·a·bil·i·ty, nounun·ver·i·fi·able, adjective
< Middle French verifier
< Medieval Latin vērificāre,
equivalent to vēri-,
combining form of vērus
true + -ficāre -fy
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for verifier
Historical Examples of verifier
He understood the process of the verifier, had seen it at work.
Still it despatched him to the looking-glass, to bring that verifier of facts in evidence against the sketch.
Such, not to be picked up by the verifier, would have to exist at great depths and never venture on land.
British Dictionary definitions for verifier
verb -fies, -fying or -fied (tr)Derived Formsverifiable, adjectiveverifiableness, nounverifiably, adverbverifier, noun
- to prove to be true; confirm; substantiate
- to check or determine the correctness or truth of by investigation, reference, etc
- law to add a verification to (a pleading); substantiate or confirm (an oath)
Word Origin for verify
C14: from Old French verifier, from Medieval Latin vērificāre, from Latin vērus true + facere to make
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for verifier
early 14c., from Old French verifier, from Medieval Latin verificare "make true," from Latin verus "true" (see very) + root of facere "to make" (see factitious).
Online Etymology Dictionary, © 2010 Douglas Harper