marsh
https://gyazo.com/c632ed972ba25d24339d46f239a5b7fd
source: By Ivan Shishkin - [1], Public Domain
noun
an area of low-lying land which is flooded in wet seasons or at high tide, and typically remains waterlogged at all times:
沼地, (海と陸の間の)湿地帯(→ swamp)
e.g. the marsh marigold loves damp fields, riverbanks, and marshes
e.g. mass noun : patches of marsh
e.g. as modifier : marsh plants.
ORIGIN
Old English mer(i)sc (perhaps influenced by late Latin mariscus ‘marsh’), of West Germanic origin.