Definition: The term pagan is used today to signify people who do not believe in the monotheistic god of Christianity, Judaism, and Islam. It is used much like "heathen". It also refers to pantheists and neo-pagans.
Pagan comes from a Latin word paganus, meaning villager, rustic, civilian, and itself comes from pagus which refers to a rural district.
Etymology Online says pagan comes from a PIE base *pag- 'to fix'.
