authenticate

[aw-then-ti-keyt]

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.

Nearby words

  1. auth.,
  2. auth. ver.,
  3. authentic,
  4. authentical,
  5. authentically,
  6. authentication,
  7. authenticator,
  8. authenticity,
  9. authigenic,
  10. author

Origin of authenticate

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

Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for authenticate


British Dictionary definitions for authenticate

authenticate

verb (tr)

to establish as genuine or valid
to give authority or legal validity to
Derived Formsauthentication, nounauthenticator, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for authenticate

authenticate

v.

"verify, establish the credibility of," 1650s, from Medieval Latin authenticatus, past participle of authenticare, from authenticus (see authentic). Related: Authenticated; authenticating.

Online Etymology Dictionary, © 2010 Douglas Harper