←
Middle Dutch coe (inherited)
←
West Frisian ko (cognate)
←
Proto-Germanic *kūz (inherited)
←
Proto-West Germanic *kū (inherited)
←
Proto-Indo-European *gʷṓws (derived)
←
Luxembourgish Kou (cognate)
←
Low German Koh (cognate)
←
Old Dutch cuo (inherited)
→
Afrikaans koei (inherited)
→
Alemannic German Chue (cognate)
→
Luxembourgish Kou (cognate)
→
Pennsylvania German Kuh (cognate)