The name Audagar is derived from the Old Frankish elements 'aud', meaning 'wealth, fortune', and 'gair', meaning 'spear'. It is a cognate of the name Edgar. The name signifies a person of wealth and strength, often associated with nobility and valor. Audagar was the name of an 8th-century Frankish nobleman who was exiled by Charlemagne, and he later became the basis for the character known as Ogier in French tales.