- "Lost and forgotten be, darker than the darkness,
Where gates stand forever shut, till the World is mended"
- ― Tom Bombadil, Fog on the Barrow-downs
The Void, or the Timeless Void was a term used in various ways.
Cosmologically, it describes the uninhabited regions of existence outside the World, the absence of the Flame Imperishable.
Melkor used to wander in the Void to look in vain for the Flame Imperishable.