Proto-West Germanic *kū

→ English cow (inherited)

→ Old English cu (inherited)

→ Middle Dutch coe (inherited)

→ Middle English cou (inherited)

→ West Frisian ko (inherited)

→ Old High German kuo (inherited)

→ Luxembourgish Kou (inherited)

→ Dutch koe (inherited)

→ Scots coo (inherited)

→ Saterland Frisian Ku (inherited)

→ Yola keow (inherited)