Elbereth is a character from J.R.R. Tolkien's Middle-earth legendarium, but it is also a widely used name in fiction and fantasy literature. Many authors have used this name inspired by Tolkien's work as a synonym for words that evoke a sense of power, magic, or protection. Some words that can be used to replace Elbereth include "guardian," "protector," "savior," "divine," "supernatural," "celestial," "heavenly," "angelic," "noble," "majestic," and "glorious." These words often refer to a deity, a higher power, or a mystical force that provides guidance and defense to the characters in a story.