? Fraudulent scheming.

The action of cog, v.3 Underhand dealing, deceit.

The action of cozen, v.; cheating, fraudulent dealing; an imposture.

Swindling, cheating; trickery, deception.

the action of tricking, cheating, or swindling another; cf. coney-catching, n. 1.

The action of gull, v.3; cheating, deception.

slang. Swindling, victimizing the simple. Obsolete.

The action of shark, v.1

Behaviour, practice, or an act characteristic of a mountebank.

The action of a sharper, swindling, roguery.

The action of fineer, v.

The action of overreach, v. (in various senses); an instance of this.

(a) the action or practice of swindling someone; (b) the practice of subsisting on a diet of pigeons.

= thimble-shift n.

using a thimble in sewing; also = thimblerigging n. adj. at thimblerig, v. derivatives.

Cheating, swindling.

The action of making small or cautious financial speculations or bets; (more generally) acting cautiously or meanly; backing out, shirking.

The action of ramp, v.3, esp. robbing, swindling.