The term 'Supreme Egyptian God' refers to two gods, Amonra and Amenra. Amonra was the god of the sun, air, and fertility, while Amenra was the god of the moon, war, and justice. Both gods were worshiped in Ancient Egypt and were considered to be the most powerful gods in the pantheon. They were often depicted as having human bodies with animal heads, and were believed to have control over the forces of nature.