One of the many names used by Túrin. This particular name meant Dread Helm, and was used by him after Beleg gave to him the Dragon-helm of Dor-lómin.

Túrin and Beleg came to be known as the Two Captains and many sought them out to join them in their fight against Morgoth. All of the lands between Teiglin and the west march of Doriath came to be called Dor-Cúarthol, or The Land of Bow and Helm after the Two Captains.

Túrin found his heart was lighter during this time and so he named himself Gorthol, for the helm which he wore upon his head, and for the dread that it instilled in his enemies.
Encyclopedia entry originally written by Nienna-of-the-Valar