Swindler :: Swindle (n.) The act or process of swindling; a cheat.
Swindlery :: Swindler (n.) One who swindles, or defrauds grossly; one who makes a practice of defrauding others by imposition or deliberate artifice; a cheat..
Windle :: Windle (n.) A spindle; a kind of reel; a winch.