Pyroeis

Pyroeis in ancient Greek religion is the god of the wandering star Areios, identified with the planet Mars.
He is also known as Mesonyx.

Etymology

Pyroeis, from, 'fire', means 'the fiery one'.

Function

In Ancient Greek astronomy, Pyroeis is the god of the planet Mars, one of the five planets visible to the naked eye. Astronomers of the time assigned these "planetae" various names, associated them with different gods, and ascribed various qualities to their apparent behaviour in the sky.