TREACHERY


Meaning of TREACHERY in English

/ ˈtretʃəri; NAmE / noun

[ U , C ] ( pl. -ies ) behaviour that involves not being loyal to sb who trusts you; an example of this :

an act of treachery

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WORD ORIGIN

Middle English : from Old French trecherie , from trechier to cheat.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.