darkedge
nounUK /ˈdɑːkɛdʒ/
US /ˈdɑːrkɛdʒ/
The dark edge is the shadowy side or border of something.
A thin line of light appeared along the darkedge of the door.
OTHER MEANINGS
2. The gloomy or dangerous border of a place or situation.
They camped near the darkedge of the forest.
3. A sharp, shadowed line where light meets darkness.
The moon showed a bright curve and a darkedge.
4. A hidden or lesser-known side of something.
He explored the darkedge of the old story.