Suggestions for a name of a world where evil entities reside?

So there are evil beings living in another realm and I was trying to think of a good name for it that hasn't been used in other books or films. I like names like The Other, The Further, and The Nether, but obviously they've already been used by other people in various video games or movies (Insidious, Minecraft), so does anyone have any suggestions? I don't have a preference, just whatever you think sounds good. I really appreciate it.