Morgoth's Iron Crown~The One Ring?

[symestreem]

Then swiftly all his inwards were filled with a flame of anguish, and the Silmaril seared his accursed flesh. Howling he fled before them, and the walls of the valley of the Gate echoed with the clamour of his torment. So terrible did he become in his madness that all the creatures of Morgoth that abode in that valley, or were upon any of the roads that led thither, fled far away; for he slew all living things that stood in his path, and burst from the North with ruin upon the world. Of all the terrors that came ever into Beleriend ere Angband's fall the madness of Carcharoth was the most dreadful; for the power of the Silmaril was hidden within him.

Carcharoth was so dangerous becuase he was driven mad by the Silmaril. It did not strengthen his evil.

P.S. Does Tolkien's use of "inwards" instead of "innards" strike anyone else as odd?