treachery
noun
[ ˈtrɛtʃ(ə)ri ]
• betrayal of trust.
• "many died because of his treachery"
Similar:
betrayal,
disloyalty,
perfidy,
perfidiousness,
faithlessness,
unfaithfulness,
infidelity,
bad faith,
breach of trust,
duplicity,
deceit,
deceitfulness,
deception,
false-heartedness,
falseness,
stab in the back,
back-stabbing,
double-dealing,
untrustworthiness,
treason,
two-timing,
Punic faith,
Origin:
Middle English: from Old French trecherie, from trechier ‘to cheat’.
