Forontë features in the Ainulindalë as replacing an earlier name for the Lamp of the North (Foros), only to be struck out and replaced with Illuin.

This lamp, along with the Southern Lamp was broken by Melkor, plunging Middle Earth in darkness.

**Note : This information comes from the HoMe series of books, which means that it is considered to be from J.R.R. Tolkien's earlier, unrevised writings. Therefore, this information cannot necessarily be considered canonical.**
Encyclopedia entry originally written by Earendil_the_Mariner