"card game," 1834, Amer.Eng., perhaps from the first element of Ger.
Pochspiel, name of a card game similar to poker, from
pochen "to brag as a bluff," lit. "to knock, rap" (see
poke (v.)). Another version traces the word to Fr.
poque, also said to have been a card game resembling poker. The earlier version of the game in Eng. was called
brag. Slang
poker face "deadpan" is from 1885.