Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Willful betrayal of fidelity, confidence, or trust; perfidy.
  • n. The act or an instance of such betrayal.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Deliberate, often calculated, disregard for trust or faith.
  • n. The act of violating the confidence of another, usually for personal gain.
  • n. Treason.

from the GNU version of the Collaborative International Dictionary of English

  • n. Violation of allegiance or of faith and confidence; treasonable or perfidious conduct; perfidy; treason.

from The Century Dictionary and Cyclopedia

  • n. Violation of allegiance or of faith and confidence; treasonable or perfidious conduct; perfidy.
  • n. Synonyms See perfidious.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. betrayal of a trust
  • n. an act of deliberate betrayal

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English trecherie, from Old French, from trichier, to trick, probably from Vulgar Latin *triccāre; see trick.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English trecherie, from Old French tricherie, trecherie, from tricher, trichier ("to cheat"), from Middle Dutch trek ("a trick"), from trekken ("to draw, play a trick on"). More at trick.

Examples

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