Northumbria(redirected from Northhumbria)
Also found in: Dictionary, Thesaurus.
one of the kingdoms created during the Anglo-Saxon conquest of Britain. It was formed at the beginning of the seventh century by the merging of the Anglian kingdoms of Bernicia and Deira. In the ninth century it was conquered, first by the Anglo-Saxon kingdom of Wessex and then by the Danes. Northumbria was finally joined to Wessex in about 924.