The Collaborative International Dictionary of English v.0.48:
Palm \Palm\ (p[aum]m), v. t. [imp. & p. p. Palmed (p[aum]md);
p. pr. & vb. n. Palming.]
1. To handle. [Obs.] --Prior.
2. To manipulate with, or conceal in, the palm of the hand;
They palmed the trick that lost the game. --Prior.
3. Hence: To take (something small) stealthily, especially by
concealing it in the palm of the hand; as, he palmed one
of the coins and walked out with it.
4. To impose by fraud, as by sleight of hand; to put by
unfair means; -- usually with on or upon; as, to palm a
stolen coin on an unsuspecting dealer. See also palm
[1913 Webster +PJC]
For you may palm upon us new for old. --Dryden.