Origin: 1300–50; Middle English certifien <
Middle French certifier <
Late Latin certificāre, equivalent to
Latin certi- (combining form of
certus decided;
see certain) +
-ficāre -fy Related formscer·ti·fi·er, noun
pre·cer·ti·fy, verb (used with object), pre·cer·ti·fied, pre·cer·ti·fy·ing.
re·cer·ti·fy, verb (used with object), re·cer·ti·fied, re·cer·ti·fy·ing.
un·cer·ti·fy·ing, adjective
Synonyms
1. corroborate, verify, validate, guarantee.