Word Study
treacher
CIDE DICTIONARY
treacher, n. [OE. trichour, trichur, OF. tricheor deceiver, traitor, F. tricheur a cheat at play, a trickster. See Treachery.].
A traitor; a cheat. [1913 Webster]
"Treacher and coward both." [1913 Webster]
For further exploring for "treacher" in Webster Dictionary Online