[jotwebe]

Well, if you google the name George Gammell Angell, it'll direct you to Lovecraft sites right quick. Similarly to most of the sources he's using.

The Sumerian was mostly me looking through online dictionaries for words that might sort of make sense. "Lesh" is made up from whole cloth, although it could be a Sumerian word. "Leth" couldn't, since there was no t-aitch in Sumerian. According to the wikipedia article anyway, which is the depth of my knowledge there.

Also note that "Unaussprechlichen Kulten" is book in the Lovecraft mythos and supposed to mean "nameless cults", but it doesn't. To be correct german, it would have to be either "Von unaussprechlichen Kulten" or "Unaussprechliche Kulte", and that would mean "unpronouncable" (literally) or "unspeakable" kults. Nameless cults would be "namelose Kulte".

I decided to keep the Lovecraftian version since Prof. G.G. Angell might be a hotshot Sumerologist, but not necessarily so great with German. Plus those are only his notes. He would have checked it before publishing, I'm sure.