shadowrim

noun
UK /ˈʃædəʊrɪm/
US /ˈʃædoʊrɪm/

The dark edge around something where the light stops.

A thin shadowrim circled the lamp on the table.


OTHER MEANINGS

2. The outer edge of a shadow itself.

She traced the shadowrim of the tree on the grass.

3. A faint dark line at the border of a picture or page.

The old photo had a soft shadowrim along one side.

4. A poetic word for the moment just before night falls.

Birds flew home across the shadowrim of the evening.