Luci Traditionally, Lucifer is a name that in English generally refers to the devil before being cast from heaven, although this is not the original meaning of the term. In Latin, from which the English word is derived, Lucifer means "light-bearer" (from the words lucem ferre). It was the name given to the dawn appearance of the planet Venus, which heralds daylight. For this meaning, English generally uses the names "Morning Star" or "Day Star", and rarely "Lucifer".