EdgarPronunciation: /ˈɛdgə/Definition of Edgar (944–75), king of England 959–75, younger brother of Edwy. He became king of Northumbria and Mercia in 957 when these regions renounced their allegiance to Edwy, succeeding to the throne of England on Edwy’s death. Edgar in other Oxford dictionaries Definition of Edgar in the US English dictionary
