411 REFERENCE · Wiktionary
Southumbria
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Back-formation from en en Southumbrian.
Proper noun
en chiefly historical
All of Anglo-Saxon England south of the River Humber, and not in Northumbria, especially in the period before England was unified.
Mercia, or a subkingdom thereof.