authenticate

[ aw-then-ti-keyt ]
/ ɔˈθɛn tɪˌkeɪt /
SEE SYNONYMS FOR authenticate ON THESAURUS.COM

verb (used with object), au·then·ti·cat·ed, au·then·ti·cat·ing.

to establish as genuine.
to establish the authorship or origin of conclusively or unquestionably, chiefly by the techniques of scholarship: to authenticate a painting.
to make authoritative or valid.

Origin of authenticate

1565–75; < Medieval Latin authenticātus made authentic (past participle of authenticāre). See authentic, -ate1

OTHER WORDS FROM authenticate

Words nearby authenticate

auteur theory, auth., auth. ver., authentic, authentical, authenticate, authenticator, authenticity, authigenic, author, author catalog

Words related to unauthenticated

mythical, untrue, unsubstantiated, inaccurate, fictitious, counterfeit, doubtful, dubious, equivocal, spurious, unverified, wrong, false, ungenuine

Example sentences from the Web for unauthenticated

British Dictionary definitions for unauthenticated

authenticate
/ (ɔːˈθɛntɪˌkeɪt) /

verb (tr)

to establish as genuine or valid
to give authority or legal validity to

Derived forms of authenticate

authentication, noun authenticator, noun