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verb (used with object), sub·stan·ti·at·ed, sub·stan·ti·at·ing.
  1. to establish by proof or competent evidence: to substantiate a charge.
  2. to give substantial existence to: to substantiate an idea through action.
  3. to affirm as having substance; give body to; strengthen: to substantiate a friendship.
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Origin of substantiate

1650–60; < New Latin substantiātus (past participle of substantiāre), equivalent to Latin substanti(a) substance + -ātus -ate1
Related formssub·stan·ti·a·ta·ble, adjectivesub·stan·ti·a·tion, nounsub·stan·ti·a·tive, adjectivesub·stan·ti·a·tor, nounnon·sub·stan·ti·a·tion, nounre·sub·stan·ti·ate, verb (used with object), re·sub·stan·ti·at·ed, re·sub·stan·ti·at·ing.re·sub·stan·ti·a·tion, nounun·sub·stan·ti·at·a·ble, adjective


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

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British Dictionary definitions for substantiation


verb (tr)
  1. to establish as valid or genuine
  2. to give form or real existence to
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Derived Formssubstantiation, nounsubstantiative, adjectivesubstantiator, noun

Word Origin

C17: from New Latin substantiāre, from Latin substantia substance
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 substantiation



1650s, "to make real, to give substance to," from Modern Latin substantiatus, past participle of substantiare, from Latin substantia (see substance). Meaning "to demonstrate or prove" is attested from 1803. Related: Substantiated; substantiating.

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Online Etymology Dictionary, © 2010 Douglas Harper