Morningstar

Lucifer[a] is one of various figures in folklore associated with the planet Venus. The entity's name was subsequently absorbed into Christianity as a name for the devil. Modern scholarship generally translates the term in the relevant Bible passage (Isaiah 14:12), where the Greek Septuagint reads ὁ ἑωσφόρος ὁ πρωὶ, as "morning star" or "shining one" rather than as a proper noun, Lucifer, as found in the Latin Vulgate.

As a name for the Devil in Christian theology, the more common meaning in English, "Lucifer" is the rendering of the Hebrew word הֵילֵל, hêlēl, (pronunciation: hay-lale)[1] in Isaiah[2] given in the King James Version of the Bible. The translators of this version took the word from the Latin Vulgate,[3] which translated הֵילֵל by the Latin word lucifer (uncapitalized),[4][5] meaning "the morning star", "the planet Venus", or, as an adjective, "light-bringing".[6]

As a name for the planet in its morning aspect, "Lucifer" (Light-Bringer) is a proper noun and is capitalized in English. In Greco-Roman civilization, it was often personified and considered a god[7] and in some versions considered a son of Aurora (the Dawn).[8] A similar name used by the Roman poet Catullus for the planet in its evening aspect is "Noctifer" (Night-Bringer).[9]

https://en.wikipedia.org/wiki/Lucifer