What does "cog" mean?

Cog: To obtrude or thrust in, by falsehood or deception; as, to cog in a word; to palm off. [R.] Fustian tragedies . . . have, by concerted applauses, been cogged upon the town for masterpieces. J. Dennis To cog a die, to load so as to direct its fall; to cheat in playing dice. Swift.

Additional senses

  1. 2.To deceive; to cheat; to play false; to lie; to wheedle; to cajole. For guineas in other men's breeches, Your gamesters will palm and will cog. Swift.
  2. 3.A trick or deception; a falsehood. Wm. Watson.
  3. 4.(Mech.) A tooth, cam, or catch for imparting or receiving motion, as on a gear wheel, or a lifter or wiper on a shaft; originally, a separate piece of wood set in a mortise in the face of a wheel.
  4. 5.(Carp.) (a) A kind of tenon on the end of a joist, received into a notch in a bearing timber, and resting flush with its upper surface. (b) A tenon in a scarf joint; a coak. Knight.
  5. 6.(Mining.) One of the rough pillars of stone or coal left to support the roof of a mine.
  6. 7.To furnish with a cog or cogs. Cogged breath sound (Auscultation), a form of interrupted respiration, in which the interruptions are very even, three or four to each inspiration. Quain.
  7. 8.A small fishing boat. Ham. Nav. Encyc.

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