foist (v.) Look up foist at
1540s, probably from Dutch vuisten "take in hand," from Middle Dutch vuist "fist" (see fist (n.)). Earliest sense was cheating at dice by concealing a loaded one in the palm of the hand with the intention of introducing it into play; general meaning "introduce surreptitiously, work in by a trick" is from 1560s. Related: Foisted; foisting.