Just to point out a possible tickle-ish name problem:
But with a name like 'Demonaica', shouldn't... He be a She?
As in 'DeMonica'?
Perhaps your monstrous Evil OverLord is really a monstrous Evil OverMistress?
Of course Demons may be genderless, or both as the situation determines?
Silly I guess, but the 'a' on the end of the name made me think... Amand a, Alici a, Monic a, and the like, usually boy names are like Dani el, and Gr eg, and Robe rt... lots of consanants, you know?
The vowels are usually reserved, not entirely I am guessing, I probably missed a male name somewhere with one of those, but nothing springs immediately to mind, but usually the vowels on the ends of names are reserved for the feminine.
If you really have to have a male monstrous evil overlord however...
you could always have 'Demonaik', or 'Demonstrousor' or Daemon Alucard,
Silly perhaps and the last is of course the old switcheroo on the dracula thingy that i heard growing up as a child with the monster movies on tv.
Anyway, I am only ribbing you a little bit, this is not meant as a big huge difficulty, just playful banter.
-T