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treacherous

Pronunciation: /ˈtɹɛt͡ʃəɹəs/

The English word “treacherous” has 3 meanings listed here.

adjective

  1. Exhibiting treachery.
  2. Deceitful; inclined to betray.
  3. Unreliable; dangerous.

Etymology

From Old French trecheros, tricheros (“deceitful”), equivalent to treacher + -ous. See treacher.

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