- 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
SynonymsSee more synonyms for authenticate on Thesaurus.com
Examples from the Web for authenticate
“Her mission was to authenticate every fact,” says Dr. Eakin, a retired math professor.The Woman Who Saved Solomon
October 20, 2013
The NCC is supposed to “authenticate” the shutdown via “a series of questions.”On the Eve of the NATO Summit, Is Phone Jamming Coming to Chicago?
May 16, 2012
The government used Simmons to authenticate 11 overt acts in the racketeering indictment of Welch and his deputy.Romney’s Shady Connections From Salt Lake Olympics Still Paying Off
May 14, 2012
To authenticate his Vanity Fair article about interrogation tactics, Hitchens agreed to be waterboarded.Christopher Hitchens on Waterboarding, Mother Teresa, and More Controversial Moments (VIDEO)
December 16, 2011
Every king had his own seal, which was used to authenticate his public acts.Richard I
I will begin with some anecdotes which I am myself able to authenticate.Stories of Animal Sagacity
That is all very well; but how can you authenticate your claim to the property?The Honor of the Name
To authenticate it, I have written and signed this marginal note.
To obtain a notary to authenticate the appeal was still harder.A History of The Inquisition of The Middle Ages; volume II
Henry Charles Lea
- to establish as genuine or valid
- to give authority or legal validity to
Word Origin and History for authenticate
"verify, establish the credibility of," 1650s, from Medieval Latin authenticatus, past participle of authenticare, from authenticus (see authentic). Related: Authenticated; authenticating.