Oddly, the word "glamdring" seems to appear in the logo of Jingai Makyou as well... post #31093 has an example in the lower left. Do I sense copyright infringement that nobody cares about? :o
"Glamdring" is glossed — by I think Elrond — as "foe-hammer"; it's from the Sindarin words "glam" (literally "shouting" or "a confused noise", but here being the collective term for a group of orcs) and "dring" ("beat" or "strike").