pokeryoudaoicibaDictYouDict[poker 词源字典]
poker: English has two words poker. The earlier, poker for a fire [16], is simply the agent noun formed from poke [14], a verb borrowed from Middle Dutch or Middle Low German poken ‘thrust, hit’. The card-game name [19] originated in the USA, but it is not clear where it came from: one suggestion is that it is connected with German pochen ‘brag’.
[poker etymology, poker origin, 英语词源]
trick (n.)youdaoicibaDictYouDict
early 15c., "a cheat, a mean ruse," from Old North French trique "trick, deceit, treachery, cheating," from trikier "to deceive, to cheat," variant of Old French trichier "to cheat, trick, deceive," of uncertain origin, probably from Vulgar Latin *triccare, from Latin tricari "be evasive, shuffle," from tricæ "trifles, nonsense, a tangle of difficulties," of unknown origin.

Meaning "a roguish prank" is recorded from 1580s; sense of "the art of doing something" is first attested 1610s. Meaning "prostitute's client" is first attested 1915; earlier it was U.S. slang for "a robbery" (1865). To do the trick "accomplish one's purpose" is from 1812; to miss a trick "fail to take advantage of opportunity" is from 1889; from 1872 in reference to playing the card-game of whist, which might be the original literal sense. Trick-or-treat is recorded from 1942. Trick question is from 1907.