Foist

Foist (foist), n. [OF. fuste stick, boat, fr. L. fustis cudgel. Cf. 1st Fust.] A light and fast-sailing ship. [Obs.] Beau. & Fl.

Foist, v. t. [imp. & p. p. Foisted; p. pr. & vb. n. Foisting.] [Cf. OD. vysten to fizzle, D. veesten, E. fizz, fitchet, bullfist.] To insert surreptitiously, wrongfully, or without warrant; to interpolate; to pass off (something spurious or counterfeit) as genuine, true, or worthy; -- usually followed by in.

Lest negligence or partiality might admit or foist in abuses and corruption.
R. Carew.

When a scripture has been corrupted . . . by a supposititious foisting of some words in.
South.

Foist, n. 1. A foister; a sharper. [Obs.] B. Jonson.

2. A trick or fraud; a swindle. [Obs.] B. Jonson.