Eöl

Name used (coined?) by J. R. R. Tolkien for an Elf in The Silmarillion. Meaning unknown; it is neither Quenya nor Sindarin, but may be derived from an Avarin language.

In The Silmarillion, Eöl is Lord of Nan Elmoth and kin to King Elu Thingol. He marries the Noldorin princess Aredhel and has a son, Maeglin, with her. He later kills Aredhel when she and Maeglin leave him and go to Gondolin, and as punishment is executed by Aredhel's brother Turgon.