slough

Noun

  1. necrotic tissue; a mortified or gangrenous part or mass
  2. a hollow filled with mud
  3. a stagnant swamp (especially as part of a bayou)
  4. any outer covering that can be shed or cast off (such as the cast-off skin of a snake)

Verb

  1. cast off hair, skin, horn, or feathers; “our dog sheds every Spring”