Au-thēn′ti-cāte, v. t.

verbtransitive

[imp. & p. p. AUTHENTICATED; p. pr. & vb. n. AUTHENTICATING.] [L. Lat. authenticare, Fr. authentiqueer.]

Sense 1. To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.

The king serves only as a notary to authenticate the choice of judges. Burke.

Sense 2. To prove authentic; to determine as real and true; as, to authenticate a portrait. Walpole.