I believe the term Jedi originated as follows. Early biblical history. Apocryphal writings that were NOT included in the Bible as we know it today in most formats, contained the writings of Enoch. Enoch was a decendant of Cain. The Book of Enoch has many references to the "Watchers", who were fallen angels. These "watchers" co-bred with mankind creating what were called the Nephilim. The Nephilim were also known as Jedi, due to the fact they were privy to the Godly knowledge of the heavens.