@Pinto-
8. slough
noun
1. an area of soft, muddy ground; swamp or swamplike region.
2. a hole full of mire, as in a road.
3. Also, slew, slue. Northern U.S. and Canadian. a marshy or reedy pool, pond, inlet, backwater, or the like.
4. a condition of degradation, despair, or helplessness.
5. the outer layer of the skin of a snake, which is cast off periodically.
6. Pathology. a mass or layer of dead tissue separated from the surrounding or underlying tissue.
7.anything that is shed or cast off.
8. Cards. a discard.