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negate

[ni-geyt, neg-eyt] /nɪˈgeɪt, ˈnɛg eɪt/
verb (used with object), negated, negating.
1.
to deny the existence, evidence, or truth of:
an investigation tending to negate any supernatural influences.
2.
to nullify or cause to be ineffective:
Progress on the study has been negated by the lack of funds.
verb (used without object), negated, negating.
3.
to be negative; bring or cause negative results:
a pessimism that always negates.
Origin
1615-1625
1615-25; < Latin negātus (past participle of negāre to deny, refuse), equivalent to neg- (variant of nec not; see neglect) + -ā- theme vowel + -tus past participle suffix
Related forms
negator, negater, noun
renegate, verb (used with object), renegated, renegating.
self-negating, adjective
unnegated, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for negater

negate

/nɪˈɡeɪt/
verb (transitive)
1.
to make ineffective or void; nullify; invalidate
2.
to deny or contradict
Derived Forms
negator, negater, noun
Word Origin
C17: from Latin negāre, from neg-, variant of nec not + aio I say
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 negater

negate

v.

1795 (with an isolated use from 1620s), back-formation from negation, or else from Latin negatus, past participle of negare. Related: Negated; negates; negating.

Online Etymology Dictionary, © 2010 Douglas Harper
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