treacher Meaning, Definition & Usage

Treach"er noun
Etymology
OE. trichour, trichur, OF. tricheor deceiver, traitor, F. tricheur a cheat at play, a trickster. See Treachery.
Definitions
  1. A traitor; a cheat. Obs.
    Treacher and coward both. Beau. & Fl.

Webster 1913