heliotheism

From helio- +‎ theism.

heliotheism (uncountable)

1. (theology) Worship of the Sun; belief that the Sun is a god.
   • 1905, Ernst Haeckel, translated by Joseph McCabe, The Riddle of the Universe: At the Close of the Nineteenth Century, Harper & Brothers Publishers, page 280:

     Sun-worship (solarism, or heliotheism) seems to the modern scientist to be the best of all forms of theism, and the one which may be most easily reconciled with modern monism.

• (worship of the Sun): solarism, sun worship, heliolatry

• heliotheist
• heliotheistic