Gulavhar, the Terror of Arnor (and other assorted beasties?)

[Gordis]

Originally Posted by Pitchwife

My main problem with Gulavhar is that the name doesn't seem to make any sense. Is that supposed to be Sindarin, or what? If yes, meaning what?

Almost certainly it was supposed to be spelled "Gûlavhar", with "Gûl" meaning "Sorcery", like in "Morgûl" or ""Gûldur"

as for avhar, I don't know. Maybe it has something to do with "avari"=the unwilling?