verb (used with object)

to make frank acknowledgment or affirmation of; declare or assert with positiveness.
to assume responsibility for; vouch for; guarantee.
to admit; confess.

Origin of avouch

1350–1400; Middle English avouchen < Middle French avouchier < Latin advocāre. See a-5, vouch, advocate
Related formsa·vouch·er, nouna·vouch·ment, nounun·a·vouched, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for avouch

Historical Examples of avouch

  • But it is not so, as every well-constituted mind will avouch.

  • You will think you have made no offence, if the Duke avouch the justice of your dealing?

    Measure for Measure

    William Shakespeare

  • Who would not avouch the honesty of John L. Stephens after reading his travels?

    The Collector

    Henry T. Tuckerman

  • How many young women in Boston can avouch for the truth of this statement?

  • "There can be no better rede, and we will all avouch it," said the citizens.

    The Fair Maid of Perth

    Sir Walter Scott

British Dictionary definitions for avouch


verb (tr) archaic

to vouch for; guarantee
to acknowledge
to assert
Derived Formsavouchment, noun

Word Origin for avouch

C16: from Old French avochier to summon, call on, from Latin advocāre; see advocate
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 avouch

late 15c., from Middle French avochier "call upon as authority," in Old French "call (to court), advocate, plead (a case)," from Latin advocare "call to" as a witness (see advocate).

Avouch, which is no longer in common use, means guarantee, solemnly aver, prove by assertion, maintain the truth or existence of, vouch for .... Avow means own publicly to, make no secret of, not shrink from admitting, acknowledge one's responsibility for .... Vouch is now common only in the phrase vouch for, which has taken the place of avouch in ordinary use, & means pledge one's word for .... [Fowler]

Related: Avouched; avouching.

Online Etymology Dictionary, © 2010 Douglas Harper