negate

[ ni-geyt, neg-eyt ]
/ nɪˈgeɪt, ˈnɛg eɪt /

verb (used with object), ne·gat·ed, ne·gat·ing.

to deny the existence, evidence, or truth of: an investigation tending to negate any supernatural influences.
to nullify or cause to be ineffective: Progress on the study has been negated by the lack of funds.

verb (used without object), ne·gat·ed, ne·gat·ing.

to be negative; bring or cause negative results: a pessimism that always negates.

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Origin of negate

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

OTHER WORDS FROM negate

ne·ga·tor, ne·gat·er, nounre·ne·gate, verb (used with object), re·ne·gat·ed, re·ne·gat·ing.self-ne·gat·ing, adjectiveun·ne·gat·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for negator (1 of 2)

negator
/ (nɪˈɡeɪtə) /

noun

electronics another name for NOT circuit

British Dictionary definitions for negator (2 of 2)

negate
/ (nɪˈɡeɪt) /

verb (tr)

to make ineffective or void; nullify; invalidate
to deny or contradict

Derived forms of negate

negator or negater, noun

Word Origin for negate

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