The name,
*Arthur, may have derived from Latin Artorius, a
Roman family name, or from Welsh art/arth
bear and Brythonic (Brittonic) gur
man (
bear-man). In early Welsh works the word art was used as a figurative synonym for
warrior Alternatively, there is another theory that the name (ar thur) was a nom de guerre translating to
the Eagle of Thor, used in reference to British war leaders by Scandinavian enemies.