[ pri-zuhmp-shuhn ]
/ prɪˈzʌmp ʃən /


Origin of presumption

1175–1225; Middle English: effrontery, supposition < Latin praesūmptiōn- (stem of praesūmptiō) anticipation, supposition, Late Latin: presumptuousness, equivalent to praesūmpt(us) (past participle of praesūmere to undertake beforehand; see presume) + -iōn- -ion
Related formso·ver·pre·sump·tion, noun
Can be confusedassumption axiom premise presumption Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for presumption

British Dictionary definitions for presumption


/ (prɪˈzʌmpʃən) /


the act of presuming
bold or insolent behaviour or manners
a belief or assumption based on reasonable evidence
a ground or basis on which to presume
law an inference of the truth of a fact from other facts proved, admitted, or judicially noticed

Word Origin for presumption

C13: via Old French from Latin praesumptiō a using in advance, anticipation, from praesūmere to take beforehand; see presume
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 presumption



mid-13c., "seizure and occupation without right," also "taking upon oneself more than is warranted," from Old French presumcion (12c., Modern French présomption) and directly from Late Latin praesumptionem (nominative praesumptio) "confidence, audacity," in classical Latin, "a taking for granted, anticipation," noun of action from past participle stem of praesumere "to take beforehand," from prae "before" (see pre-) + sumere "to take" (see exempt (adj.)). In English, the meaning "the taking of something for granted" is attested from c.1300. Presumptuous preserves the older sense.

Online Etymology Dictionary, © 2010 Douglas Harper