from
The Collaborative International Dictionary of English v.0.48
Foist \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.
[1913 Webster]
Lest negligence or partiality might admit or foist in
abuses and corruption. --R. Carew.
[1913 Webster]
When a scripture has been corrupted . . . by a
supposititious foisting of some words in. --South.
[1913 Webster]