The Collaborative International Dictionary
Olympianism
Olympianism \O*lym"pi*an*ism\, n. Worship of the Olympian gods, esp. as a dominant cult or religion.
Wikipedia
Olympianism
Olympianism can mean;
- Hellenic Polytheism including the syncretised religion of the Greek empires
- Hellenic Polytheistic Reconstructionism, known as Hellenismos
- Roman Polytheism
- Greco-Roman Polytheism