Pagan

From Conservapedia

Pagan is a pejorative term, derived from a word meaning "rural." Early Christians used the term "pagan" or "Paganism" to characterize the remaining polytheists of the latter Roman Empire as backwoods, uneducated, and ignorant peasants. Original pagans were followers of various polytheistic religions, such as those of the Celtic people. Today, there has been a revival movement, often referred to as reconstructionists, who seek to restore old world religions, or neo-pagans, who follow any of a number of earth and spirit based faiths.

The word pagan is often used today, as it was by the early Christians, to refer to the the polytheistic religions of ancient Greek and Rome. When used by classics scholars the term is not considered pejorative.