←
Proto-Germanic *knuppô (inherited)
←
Middle High German knopf (inherited)
←
Proto-West Germanic *knappō (mention)
←
Old High German knopf (inherited)
←
Hunsrik Knopp (cognate)
←
Luxembourgish Knapp (cognate)
→
Alemannic German Chnopf (cognate)
→
Luxembourgish Knapp (cognate)