one of the oldest gods of the Germanic peoples and a somewhat enigmatic figure. He was apparently the god concerned with the formalities of war-especially treaties-and also, appropriately, of justice. It is in his character as guarantor of contracts, guardian of oaths, that the most famous myth about him may be understood: as a guarantee of good faith, he placed his hand between the jaws of the monstrous wolf Fenrir while the gods, pretending sport but intending a trap, bound the wolf; when Fenrir realized he had been tricked he bit off Tyr's hand (hence Tyr's identification as the one-handed god). Tyr came to be identified by the Romans with their own Mars, hence dies Marti (Mars' Day) came to be rendered Tysdagr (Tuesday).
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