NorthumbriayoudaoicibaDictYouDict[Northumbria 词源字典]
Anglo-Saxon kingdom of Norðhymbre, which lay north of the river Humber (Latin Humbri fluminis, c.720), an ancient pre-English river name of unknown origin. Related: Northumbrian. The Northumbrians seem at times to have referred to the Mercians as Southumbrians.[Northumbria etymology, Northumbria origin, 英语词源]