From H1984 (in the sense of brightness); the morningstar
KJV Usage: lucifer.
Brown-Driver-Briggs' Hebrew Definitions
Lucifer = "light-bearer" 1. shining one, morning star, Lucifer a. of the king of Babylon and Satan (fig.) 2. (TWOT) 'Helel' describing the king of Babylon
Origin: from H1984 (in the sense of brightness)
Parts of Speech: Noun Masculine