Webster's Revised Unabridged Dictionary · 1913

Swindler

Swindler , noun

[German schwindler, from schwindlen to be dizzy, to act thoughtlessly, to cheat, from schwindel dizziness, from schwinden to vanish, to disappear, to dwindle. See Swim to be dizzy.]

One who swindles, or defrauds grossly; one who makes a practice of defrauding others by imposition or deliberate artifice; a cheat.
Fraud and injustice soon follow, and the dignity of the British merchant is sunk in the scandalous appellation of a swindler. — V. Knox
Perhaps you 'll think I act the same As a sly sharper plays his game. — Cotton