Maiar

The Maiar (singular: Maia) are a fictional class of beings from J. R. R. Tolkien's high fantasy legendarium. Supernatural and angelic, they are "lesser Ainur" who entered the cosmos of Eä in the beginning of time. The name Maiar is in the Quenya tongue (one of several languages constructed by Tolkien) from the Elvish root maya- "excellent, admirable".

Commentators have noted that since the Maiar are immortals but can choose to incarnate fully in Men's bodies on Middle-earth, they can be killed; Tolkien did not explain what happened to them then. Others have observed that their semi-divine nature and the fact that they can be sent on missions to work out the divine purpose makes them much like the angels of Christianity.