English
marshman
From marsh + man.
Proto-Indo-European *móri ‘standing water’
…
Proto-West Germanic *mari ‘sea, lake’
Proto-West Germanic *marisk ‘lake-like, marshy’
Old English mersċ ‘a marsh, bog, or swamp’
Middle English mersch ‘a region of marshland or damp meadowland’
English marsh
Proto-Germanic *mann- ‘human being, person, man’
Proto-West Germanic *mann ‘person’
Old English mann ‘human being, person, man’
Middle English man
English man
Today it means
noun An inhabitant of a marshy area or piece of marshland.
Language periods are conventional ranges, not dates for this word.
Etymograph / marshman