betray

[bih-trey]
See more synonyms for betray on Thesaurus.com
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

1200–50; Middle English bitraien, equivalent to bi- be- + traien < Old French trair < Latin trādere to betray. See traitor
Related formsbe·tray·al, nounbe·tray·er, nounpre·be·tray, verb (used with object)pre·be·tray·al, nounself-be·tray·al, nounself-be·tray·ing, adjectiveun·be·trayed, adjectiveun·be·tray·ing, adjective

Synonyms for betray

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Antonyms for betray

4, 6. hide, conceal.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


Examples from the Web for betrayer

Historical Examples of betrayer

  • 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


British Dictionary definitions for betrayer

betray

verb (tr)
  1. to aid an enemy of (one's nation, friend, etc); be a traitor toto 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; failhis tired legs betrayed him
  6. to show signs of; indicateif one taps china, the sound betrays any faults
  7. to reveal unintentionallyhis 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 Formsbetrayal, nounbetrayer, noun

Word Origin for betray

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

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