Yes, the bearer of light. In Greek, “Phosphorus.”
You are probably aware that is the planet Venus. I always thought it was interesting to read about Bishop Lucifer and his Luciferian heretics also. A fascinating little excursion into the ancient politics of the then-aborning Roman church.
In the development of the Roman Catholic religion, it cannot be overlooked that when Christianity was made the official religion of the Roman Empire, replacing the religion of "Sol Invictus", Christians comprised roughly 10% of the Empire, but after Imperial decree commanded that all Roman citizens, under penalty of law, become Christian, there was a massive influx of pagans, including into the clergy which were then employees of the Empire, who were not truly born again Christians, but converts by mandate and of convenience because of the social and economic advantages that came along with conversion, especially within the ranks of the clergy.