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That which is devised; a device; a hostile or treacherous scheme; an artful design or plot. Devilish machinations come to naught. Milton. His ingenious machinations had failed. Macaulay.

f character, qualities, etc.; to misjudge. Mistake me not so much, To think my poverty is treacherous. Shak.

One of a class of water spirits, commonly described as of a mischievous disposition. The treacherous nixes who entice men to a watery death. Tylor.

. De Quincey. Then would be closed the restless, oblique eye. That looks for evil, like a treacherous spy. Wordworth.

r plan, of a complicated nature, adapted to the accomplishment of some purpose, usually a treacherous and mischievous one; a conspiracy; an intrigue; as, the Rye-house Plot. I have overheard a plot of death. Shak. O, think what anxious moments pass between The birth of plots and their last fatal periods! Addison.…

Treacherous; perfidious; traitorous. [Obs.] Daniel.

Treacherous. [Obs.]

Characteristic of the ancient Carthaginians; faithless; treacherous; as, Punic faith. Yes, yes, his faith attesting nations own; 'T is Punic all, and to a proverb known. H. Brooke.

Not firm or trusty; unsound; defective; treacherous; unsafe; as, a rotten plank, bone, stone. "The deepness of the rotten way." Knolles. Rotten borough. See under Borough. -- Rotten stone (Min.), a soft stone, called also Tripoli (from the country from which it was formerly brought), used in all sorts of finer grindin…

Fig.: A subtle, treacherous, malicious person.

Cunningly devised; crafty; treacherous; as, a subtle stratagem.

Like a traitor; treacherous; traitorous. [Obs.] "Traitorly rascals." Shak.

Guilty of treason; treacherous; perfidious; faithless; as, a traitorous officer or subject. Shak.

Faitless; false; treacherous. Thrall to the faithless waves and trothless sky. Fairfax.

ful; not observant of promises, vows, allegiance, or duty; violating trust or confidence; treacherous; perfidious; as, an unfaithful subject; an unfaithful agent or servant. My feet, through wine, unfaithful to their weight. Pope. His honor rooted in dishonor stood, And faith unfaithful kept him falsely true. Tennyson.…

A dangerous, treacherous, or malignant person. Who committed To such a viper his most sacred trust Of secrecy. Milton. Horned viper. (Zoöl.) See Cerastes. -- Red viper (Zoöl.), the copperhead. -- Viper fish (Zoöl.), a small, slender, phosphorescent deep-sea fish (Chauliodus Sloanii). It has long ventral and dorsal fi…