Added 9 October 2026
treachery
/ˈtɹɛt͡ʃəɹi/ noun
In Latin: perfidia Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about treachery at Wordnik → Where our words come from →
- Betrayal of a trust.
- An act of deliberate betrayal.
Origin
From Middle English trecherie, from Old French tricherie, trecherie, from tricher, trichier (“to cheat”).
From Wiktionary, via Kaikki.org (CC BY-SA)