authenticate

[aw-then-ti-keyt] Origin

au·then·ti·cate

[aw-then-ti-keyt]
verb (used with object), au·then·ti·cat·ed, au·then·ti·cat·ing.
1.
to establish as genuine.
2.
to establish the authorship or origin of conclusively or unquestionably, chiefly by the techniques of scholarship: to authenticate a painting.
3.
to make authoritative or valid.

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

au·then·ti·cat·a·ble, adjective
au·then·ti·ca·tion, noun
non·au·then·ti·cat·ed, adjective
non·au·then·ti·ca·tion, noun
re·au·then·ti·cate, verb (used with object), re·au·then·ti·cat·ed, re·au·then·ti·cat·ing.
EXPAND
re·au·then·ti·ca·tion, noun
self-au·then·ti·cat·ing, adjective
un·au·then·ti·cat·ed, adjective
well-au·then·ti·cat·ed, adjective
COLLAPSE


1. confirm, validate, substantiate.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Authenticate is one of our favorite verbs.
So is subtilize. Does it mean:
to expurgate (a written work) by removing or modifying passages considered vulgar or objectionable.
to introduce subtleties into or argue subtly about.
Collins
World English Dictionary
authenticate (ɔːˈθɛntɪˌkeɪt)
 
vb
1.  to establish as genuine or valid
2.  to give authority or legal validity to
 
authenti'cation
 
n
 
au'thenticator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

authenticate
1650s, "verify, establish the credibility of," from M.L. authenticatus, pp. of authenticare, from authenticus (see authentic). Authentication (1788).
Online Etymology Dictionary, © 2010 Douglas Harper
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