AUTHENTICATE v. 2 definitions
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.
GENUINE a.
rom, the original stock; native; hence, not counterfeit, spurious, false, or adulterated; authentic; real; natural; true; pure; as, a genuine text; a genuine production; genuine materials. "True, genuine night." Dryden.