Fenrir is a large and fierce wolf. He is a son of Loki.
The wolf Fenrir.
The wolf Fenrir.
By a wolf named fenrir.
Fenrir the wolf, who bit off the hand of Tyr.
It was bitten off by the wolf Fenrir.
He is swallowed whole and alive by the wolf Fenrir.
Fenrir - sometimes called Fenris Wolf - is a huge wolf from Norse mythology. He is one of Loki's sons, and is imprisoned by the gods - he bites off Tyr's hand while they are trying to chain him up. It has been foretold that Fenrir will kill Odin, but will then be killed by one of Odin's sons.
Fenrir --- see the related links below for more information.
The werewolf was called Fenrir Greyback
Hoping you meant "Fenrir" or "Fafnir"; Norse mythological tales bespeak of a monstrous wolf named Fenrir, and a serpent (or dragon) named Fafnir.
There isn't a direct translation, but in Norse Mythology there is a blood-thirsty wolf called Fenrir, if that helps...