←
Old English mersċ (inherited)
←
Old English merisċ (mention)
←
Middle English mersh (inherited)
←
Middle English mershe (mention)
←
West Frisian mersk (cognate)
←
Proto-Germanic *mari (mention)
←
Proto-West Germanic *marisk (inherited)
→
Westrobothnian myyr (link)
→
Norwegian Nynorsk myr (link)
→
Saterland Frisian Marsk (link)