verb (used with object), sub·stan·ti·at·ed, sub·stan·ti·at·ing.
Origin of substantiate
Synonyms for substantiate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to establish as valid or genuine
to give form or real existence to
Word Origin for substantiate
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
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.
Online Etymology Dictionary, © 2010 Douglas Harper