verb (used with object), a·verred, a·ver·ring.

to assert or affirm with confidence; declare in a positive or peremptory manner.
Law. to allege as a fact.

Origin of aver

1350–1400; Middle English < Middle French averer < Medieval Latin advērāre, equivalent to ad- ad- + -vēr- (< Latin vērus true) + -ā- thematic vowel + -re infinitive suffix
Related formsmis·a·ver, verb (used with object), mis·a·verred, mis·a·ver·ring.pre·a·ver, verb (used with object), pre·a·verred, pre·a·ver·ring.un·a·verred, adjective

Synonym study

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aver

Historical Examples of aver

  • But I'll have to be doing as the doctor was saying—sending you to England aver.

    The Manxman

    Hall Caine

  • But doth he aver that his people were used to plant fish with the corn?

    Standish of Standish

    Jane G. Austin

  • It would hardly be correct to aver that I had got it even partly.

    My Reminiscences

    Rabindranath Tagore

  • He may have the heart of a hero along with it; I aver nothing to the contrary.


    George Eliot

  • I aver that the term is not at all applicable to the religious denominations in this country.

    The Story of My Life

    Egerton Ryerson

British Dictionary definitions for aver


verb avers, averring or averred (tr)

to state positively; assert
law to allege as a fact or prove to be true
Derived Formsaverment, noun

Word Origin for aver

C14: from Old French averer, from Medieval Latin advērāre, from Latin vērus true
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 aver

late 14c., from Old French averer "verify," from Vulgar Latin *adverare "make true, prove to be true," from Latin ad- "to" (see ad-) + verus "true" (see very). Related: Averred; averring.

Online Etymology Dictionary, © 2010 Douglas Harper