←
Proto-Germanic *rauzą (inherited)
←
Middle High German rōr (inherited)
←
Old High German rōr (inherited)
←
Hunsrik Roher (cognate)
←
Old Norse reyrr (cognate)
→
Old French rosel (cognate)
→
Alemannic German Roor (cognate)
→
Luxembourgish Rouer (cognate)
→
Old Norse reyrr (cognate)
→
Serbo-Croatian ror (derived)
→
Saterland Frisian Ruur (cognate)