[foist] vt [prob. fr. obs. D vuisten to take into one's hand, fr. MD vuysten, fr. vuyst fist; akin to OE fyst fist] (ca. 1587) 1 a: to introduce or insert surreptitiously or without warrant b: to force another to accept esp. by stealth or deceit
2: to pass off as genuine or worthy "~ costly and valueless products on the public --Jonathan Spivak"