The name is from Proto-Germanic *Agilaz,[1] and the same legend is reflected in Old English Ægil [ˈæɡil] of the Franks Casket and Alamannic Aigil of the Pforzen buckle.
The Proto-Germanic form of the legend may only be guessed at, but it appears likely that Egil was a renowned archer who defended a keep together with his wife Aliruna, against numerous attackers.
The testimony of the Pforzen buckle is uncertain beyond naming Aigil and Ailrun, possibly adding that they fought a battle at the Ilz river.
In the Völundarkviða, Egil is a son of a Finn king, his elder brother being Slagfiðr, his younger one Völund.
In the Thidreks saga, Egil acts as a masterly archer, once he is forced by king Nidung to shoot an apple from the head of his son.