Resembling, or of the nature of, a slough, or the dead matter which separates from living flesh.
source: Webster 1913
adjective satellite
(of soil) soft and watery
The ground was boggy under foot. A marshy coastline. Miry roads. Wet mucky lowland. Muddy barnyard. Quaggy terrain. The sloughy edge of the pond. Swampy bayous.