Bayou
The marshy inlet of a river or lake is called a bayou. The name for an artificial waterway is a canal.
bayou
A bayou is a marshy creek or swampy backwater of a river or lake. They are very common in the U. S. along the gulf coast.
If you are referring to the crossword puzzle hint, try Bayou.
Lake Victoria has several inlets, but the Nile River is the only surface outlet.
estuary
From Louisiana French, borrowed from Choctaw 'Bayuk' as a sluggish, marshy tributary of a lake or river
Bayou
it is known as a lake (Mackenzie Lake)
A "bay" is a wide inlet of a sea or lake.
A swamp is a biome or an ecosystem that has trees and bushes. It is very wet and typically either marshy or it has many of the characteristics of a lake or river.
Cooum River in Chennai