Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Old French
Origin: verifier, from Medieval Latin verificare, from Latin verus; VERY2

verify

 verb
     
ver‧i‧fy past tense and past participle verified, present participle verifying, third person singular verifies [transitive] formal
1 to discover whether something is correct or true
verify that/whether
A computer program verifies that the system is working.
American forces will remain to verify compliance with the treaty.
2 to state that something is true [= confirm]:
His statement was verified by several witnesses.
—verifiable adjective:
a verifiable fact
—verification noun [uncountable and countable]
automatic signature verification
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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