strudel (n.)youdaoicibaDictYouDict[strudel 词源字典]
kind of Austrian pastry, 1893, from German Strudel, literally "eddy, whirlpool," from Old High German stredan "to bubble, boil, whirl, eddy," from PIE root *ser- (2) "to flow" (see serum).[strudel etymology, strudel origin, 英语词源]