Crossword puzzle clue "sloughs off"

MOLT, to shed feathers or fur, also MOULT

(Arabic) a substance which, dissolved in water, forms a solution containing hydroxyl ions and with a pH of more than 7

BOG, to sink into a bog

FEN, wet land with alkaline, neutral, or only slightly acid peaty soil

MERE, to mark off, divide, also MEARE, MEER

MIRE, to sink in mud

MORASS, a very wet or muddy area of ground