the.com/marshland

means Low, waterlogged ground that stays wet most of the year, typically thick with grasses and reeds rather than trees.

from From 'marsh,' traced back through Old English 'mersc' or 'merisc,' which is tied to the Germanic root for 'sea' or 'mere' (a lake or pond) — the same ancient root behind 'mere' in English. So the word has always carried the sense of ground that's cousin to water, land that remembers being a lake. 'Land' is simply Old English 'land,' meaning, unglamorously, ground — the oldest word for the stuff under your feet.