Also try Melko, Bauglir, Belegūr - those are alternate names of Morgoth.
I've checked stuff and am pretty sure the answer should be either "Morgoth" or "Morgoth Bauglir".
There is a walthrough on Gamefaqs (
http://www.gamefaqs.com/computer/dos...me/921815.html), but it makes no mention of the puzzle.