§ Of Túrin Turambar The Silmarillion

There he made a song for Beleg, and he named it Laer Cú Beleg, the Song of the Great Bow, singing it aloud heedless of peril. And Gwindor gave the sword Anglachel into his hands, and Túrin knew that it was heavy and strong and had great power; but its blade was black and dull and its edges blunt. Then Gwindor said: 'This is a strange blade, and unlike any that I have seen in Middle-earth. It mourns for Beleg even as you do. But be comforted; for I return to Nargothrond of the house of Finarfin, and you shall come with me, and be healed and renewed.'