Is the word Demon a french word pronounced DE MON meaning they come from Of The Mons or mounds or private parts of females?

No. The Word come from Latin, "daemon", meaning "spirit". Prior to that, it came from the Greek Word, "daimon", which is a form of a noun / pronoun showing it owns something, that Word being "daimonos", which means "Lesser gods, guiding spirits" (sometimes for the souls of the dead). In Christian Greek translations, you basically get, "god of the heathen" and "unclean spirit". One etymology source states that the "Demon of Socrates" (late 14c.) was a "daimonion", a "divine principle or inward oracle." His accusers, and later the Church Fathers, however, represented this otherwise." (Socrates heard voices that told him what to do.)