authenticate

• POS: Verb (transitive)
• HYPHEN: au=then=ti=cate

CIDE DICTIONARY

authenticate, v. t. [Cf. LL. authenticare.].

•  To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.  [1913 Webster]

  "The king serves only as a notary to authenticate the choice of judges."  [1913 Webster]
•  To prove authentic; to determine as real and true; as, to authenticate a portrait.  Walpole.  [1913 Webster]

OXFORD DICTIONARY

authenticate, v.tr.
1 establish the truth or genuineness of.
2 validate.

Derivative

authentication n. authenticator n.

Etymology

med.L authenticare f. LL authenticus: see AUTHENTIC

THESAURUS

authenticate

OK, accept, accredit, affirm, amen, approve, attest, authorize, autograph, avouch, back, back up, bear out, bolster, buttress, certify, circumstantiate, confirm, corroborate, cosign, countersign, demonstrate, document, endorse, fortify, give permission, give the go-ahead, give the imprimatur, give thumbs up, initial, justify, notarize, pass, pass on, pass upon, permit, probate, prove, ratify, reinforce, rubber stamp, sanction, say amen to, seal, second, sign, sign and seal, strengthen, subscribe to, substantiate, support, sustain, swear and affirm, swear to, test, try, undergird, undersign, underwrite, uphold, validate, verify, visa, vise, vouch for, warrant

ROGET THESAURUS

authenticate

Evidence

VB be evidence, evince, show, betoken, tell of, indicate, imply, involve, argue, bespeak, breathe, have weight, carry weight, tell, speak volumes, speak for itself, rest upon, depend upon, repose on, bear witness, give evidence, testify, depose, witness, vouch for, sign, seal, undersign, set one's hand and seal, sign and seal, deliver as one's act and deed, certify, attest, acknowledge, make absolute, confirm, prove (demonstrate), indorse, countersign, corroborate, support, ratify, bear out, uphold, warrant, adduce, attest, cite, quote, refer to, appeal to, call, call to witness, bring forward, bring into court, allege, plead, produce witnesses, confront witnesses, place into evidence, mark into evidence, collect evidence, bring together evidence, rake up evidence, experiment, have a case, make out a case, establish, authenticate, substantiate, verify, make good, quote chapter and verse, bring home to, bring to book.