authenticate

Meanings

1. To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.
2. To prove authentic; to determine as real and true.

1. Synonym of authentic.

Etymology

Etymology tree Proto-Indo-European *h₂ewder.? Proto-Indo-European *sóder.? Proto-Indo-European *h₂ewder. Ancient Greek αὖ (aû) Ancient Greek τόν (tón)? Ancient Greek αὐτός (autós) Ancient Greek αὐτο- (auto-) Proto-Indo-European *senh₂-der. Ancient Greek *ἕντης (*héntēs) Proto-Indo-European *-tósder. Ancient Greek -της (-tēs) Ancient Greek αὐθέντης (authéntēs) Ancient Greek -ῐκός (-ĭkós) Ancient Greek αὐθεντῐκός (authentĭkós)bor. Medieval Latin authenticus Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Medieval Latin -ō Medieval Latin authenticōbor. English authenticate Borrowed from Medieval Latin authenticō. By surface analysis, authentic + -ate (verb-forming suffix).