Bog

1. A quagmire filled with decayed moss and other vegetable matter; wet spongy ground where a heavy body is apt to sink; a marsh; a morass.
2. A little elevated spot or clump of earth, roots, and grass, in a marsh or swamp.
3. To sink, as into a bog; to submerge in a bog; to cause to sink and stick, as in mud and mire.