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assert

[uh-surt] /əˈsɜrt/
verb (used with object)
1.
to state with assurance, confidence, or force; state strongly or positively; affirm; aver:
He asserted his innocence of the crime.
2.
to maintain or defend (claims, rights, etc.).
3.
to state as having existence; affirm; postulate:
to assert a first cause as necessary.
Idioms
4.
assert oneself, to insist on one's rights, declare one's views forcefully, etc.:
The candidate finally asserted himself about property taxes.
Origin
1595-1605
1595-1605; < Latin assertus joined to, defended, claimed (past participle of asserere), equivalent to as- as- + ser- (see series) + -tus past participle suffix
Related forms
asserter, assertor, noun
assertible, adjective
misassert, verb (used with object)
overassert, verb (used with object)
preassert, verb (used with object)
reassert, verb (used with object)
Synonyms
1. asseverate, avow, maintain. See declare. 2. uphold, support. See maintain.
Antonyms
1. deny.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for assertor

assert

/əˈsɜːt/
verb (transitive)
1.
to insist upon (rights, claims, etc)
2.
(may take a clause as object) to state to be true; declare categorically
3.
to put (oneself) forward in an insistent manner
Derived Forms
asserter, assertor, noun
assertible, adjective
Word Origin
C17: from Latin asserere to join to oneself, from serere to join
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
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Word Origin and History for assertor

assert

v.

c.1600, "declare," from Latin assertus, past participle of asserere "claim, maintain, affirm" (see assertion). Related: Asserted; asserting. To assert oneself "stand up for one's rights" is recorded from 1879.

Online Etymology Dictionary, © 2010 Douglas Harper
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