SenecayoudaoicibaDictYouDict[Seneca 词源字典]
1610s, from Dutch Sennecas, collective name for the Iroquois tribes of what became upper New York, of uncertain origin, perhaps from a Mahican name for the Oneida or their village. Earlier sinnekens, senakees; form probably influenced by the name of the ancient Roman philosopher.[Seneca etymology, Seneca origin, 英语词源]