northumbria

noun

1. an early English kingdom extending N from the Humber to the Firth of Forth.

noun

1. (in Anglo-Saxon Britain) a region that stretched from the Humber to the Firth of Forth: formed in the 7th century ad, it became an important intellectual centre; a separate kingdom until 876 ad
2. an area of NE England roughly corresponding to the Anglo-Saxon region of Northumbria

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.