shenanigan (n.)youdaoicibaDictYouDict[shenanigan 词源字典]
1855, of uncertain origin. Earliest records of it are in San Francisco and Sacramento, California, U.S. Suggestions include Spanish chanada, a shortened form of charranada "trick, deceit;" or, less likely, German Schenigelei, peddler's argot for "work, craft," or the related German slang verb schinäglen. Another guess centers on Irish sionnach "fox."[shenanigan etymology, shenanigan origin, 英语词源]