What does Rhefugi come from?

[Ryax_X12]

It's a language spoken by demons it seems, but I can't find out where it comes from. I've been searching for hours, and keep getting the same results. Either it's from something fictional, or somebody made it up.

I really wanna know because I wanna see if it's safe to use in a story I'm writing, but also because I'm really curious now.
To be clear "Either it's from something fictional, or somebody made it up." is just a guess, it's not from my search results.

[Tricia]

Well, there's this: http://arryhenrae.tripod.com/

However, Google found a number of hits for Rhefugi demon language, so I wonder if you tried those? Here is a Facebook group for it, as a starting point: https://www.facebook.com/pages/Rhefugi-T...5697859711