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Webster 1913 Edition

Treachery

Treach′er-y

,
Noun.
[OE.
trecherïe
,
trichere
, OF.
trecherie
,
tricherie
, F.
tricherie
trickery, from
tricher
to cheat, to trick, OF.
trichier
,
trechier
; probably of Teutonic origin. See
Trickery
,
Trick
.]
Violation of allegiance or of faith and confidence; treasonable or perfidious conduct; perfidy; treason.
Be ware, ye lords, of their
treachery
.
Chaucer.
In the council chamber at Edinburgh, he had contracted a deep taint of
treachery
and corruption.
Macaulay.

Webster 1828 Edition

Treachery

TREACHERY

,
Noun.
trech'ery. Violation of allegiance or of faith and confidence. The man who betrays his country in any manner, violates his allegiance, and is guilty of treachery. This is treason. The man who violates his faith pledged to his friend, or betrays a trust in which a promise of fidelity is implied, is guilty of treachery. The disclosure of a secret committed to one in confidence, is treachery. This is perfidy.

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