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betray

[bih-trey] /bɪˈtreɪ/
verb (used with object)
1.
to deliver or expose to an enemy by treachery or disloyalty:
Benedict Arnold betrayed his country.
2.
to be unfaithful in guarding, maintaining, or fulfilling:
to betray a trust.
3.
to disappoint the hopes or expectations of; be disloyal to:
to betray one's friends.
4.
to reveal or disclose in violation of confidence:
to betray a secret.
5.
to reveal unconsciously (something one would preferably conceal):
Her nervousness betrays her insecurity.
6.
to show or exhibit; reveal; disclose:
an unfeeling remark that betrays his lack of concern.
7.
to deceive, misguide, or corrupt:
a young lawyer betrayed by political ambitions into irreparable folly.
8.
to seduce and desert.
Origin of betray
1200-1250
1200-50; Middle English bitraien, equivalent to bi- be- + traien < Old French trair < Latin trādere to betray. See traitor
Related forms
betrayal, noun
betrayer, noun
prebetray, verb (used with object)
prebetrayal, noun
self-betrayal, noun
self-betraying, adjective
unbetrayed, adjective
unbetraying, adjective
Synonyms
4. bare, expose, tell, divulge. 6. display, manifest, expose, uncover.
Antonyms
4, 6. hide, conceal.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for betrayer
Historical Examples
  • Such were in some measure the sensations of Imogen, upon the re-appearance of her betrayer.

    Imogen William Godwin
  • Her distress was a new gratification and stimulus to her betrayer.

    Imogen William Godwin
  • In vain she resisted his violence; in vain she strove to escape from her betrayer.

    Imogen William Godwin
  • Would she have been guilty of a wicked action, then, if she had been his betrayer?

  • The betrayer of his trust was found dead in his room, slain by an unknown assassin.

    The Christian Hall Caine
  • He was her betrayer, her assassin, for he tried to slay her soul.

    The Eternal City Hall Caine
  • Edith, my husband—no, my betrayer, I ought rather to say—has deserted me!

    The Masked Bridal Mrs. Georgie Sheldon
  • But it is her mouth—at once her betrayer and her chief charm—that one loves.

    Molly Bawn Margaret Wolfe Hamilton
  • He had no twin, a disobedient soldier, a liar and betrayer, as it was said he had.'

    The Long Roll Mary Johnston
  • It means that I intend to rid the world of a base blackguard and betrayer of women!

    The Minister of Evil William Le Queux
British Dictionary definitions for betrayer

betray

/bɪˈtreɪ/
verb (transitive)
1.
to aid an enemy of (one's nation, friend, etc); be a traitor to: to betray one's country
2.
to hand over or expose (one's nation, friend, etc) treacherously to an enemy
3.
to disclose (a secret, confidence, etc) treacherously
4.
to break (a promise) or be disloyal to (a person's trust)
5.
to disappoint the expectations of; fail: his tired legs betrayed him
6.
to show signs of; indicate: if one taps china, the sound betrays any faults
7.
to reveal unintentionally: his grin betrayed his satisfaction
8.
betray oneself, to reveal one's true character, intentions, etc
9.
to lead astray; deceive
10.
(euphemistic) to seduce and then forsake (a woman)
Derived Forms
betrayal, noun
betrayer, noun
Word Origin
C13: from be- + trayen from Old French trair, from Latin trādere
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 betrayer
n.

1520s, agent noun from betray (v.).

betray

v.

late 13c., bitrayen "mislead, deceive, betray," from be- + obsolete Middle English tray, from Old French traine "betrayal, deception, deceit," from trair (Modern French trahir) "betray, deceive," from Latin tradere "hand over," from trans- "across" (see trans-) + dare "to give" (see date (n.1)). Related: Betrayed; betraying.

Online Etymology Dictionary, © 2010 Douglas Harper
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13
13
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