dumpling (n.)youdaoicibaDictYouDict[dumpling 词源字典]
c. 1600, Norfolk dialect, of uncertain origin, perhaps from some Low German word or from noun dump "lump" (late 18c.). Related: Dumplings.[dumpling etymology, dumpling origin, 英语词源]
gnocchi (n.)youdaoicibaDictYouDict
type of small potato dumplings, 1891, from Italian gnocchi, plural of gnocco, from nocchio "a knot in wood," perhaps from a Germanic source akin to knuckle (n.), gnarled, etc. So called for their shape.