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verb (used with object), rat·i·fied, rat·i·fy·ing.
  1. to confirm by expressing consent, approval, or formal sanction: to ratify a constitutional amendment.
  2. to confirm (something done or arranged by an agent or by representatives) by such action.
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Origin of ratify

1325–75; Middle English ratifien < Middle French ratifier < Medieval Latin ratificāre, equivalent to Latin rat(us) calculated (see rate1) + -ificāre -ify
Related formsrat·i·fi·er, nounnon·rat·i·fy·ing, adjectiveun·rat·i·fied, adjective


See more synonyms for ratify on Thesaurus.com
1. corroborate, approve. 2. validate, establish.


1. veto, disapprove.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for ratifiers


verb -fies, -fying or -fied
  1. (tr) to give formal approval or consent to
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Derived Formsratifiable, adjectiveratification, nounratifier, noun

Word Origin

C14: via Old French from Latin ratus fixed (see rate 1) + facere to make
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 ratifiers



mid-14c., from Old French ratifier (13c.), from Medieval Latin ratificare "confirm, approve," literally "fix by reckoning," from Latin ratus "fixed by calculation; determined; approved; certain, sure; valid" (past participle adjective from reri "to reckon, think;" see reason (v.)) + root of facere "to make" (see factitious). Related: Ratified; ratifying.

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Online Etymology Dictionary, © 2010 Douglas Harper