A vocabulary of landscape — a landscape of words 1054 entries

backwater

BAK-waw-ter
A section of river where the current is absent or reversed — water backed up behind an obstruction, in a side channel, or in a flooded area adjacent to the main flow. Backwaters are quiet, warm, and biologically rich: nurseries for young fish, habitat for amphibians and invertebrates, and feeding grounds for wading birds. The word’s metaphorical sense — a place bypassed by progress — carries a judgment the ecological sense does not deserve.
Etymology
English compound of back (Old English bæc) + water (Old English wæter). Literally water held back — water that has ceased to move forward with the main current. The dismissive metaphorical sense, a place left behind, is a later extension.