Where does “Kooihuizen” come from?

Kooihuizen (Dutch) comes from Saterland Frisian Koai, from Old Frisian kai, from Proto-Germanic kēgaz.

Ancestry of “Kooihuizen”, step by step

StepLanguageWordMeaning
1Saterland FrisianKoaikey
2Old Frisiankai—
3Proto-Germanickēgaz—
Every word from Proto-Germanic kēgaz →Every word from Old Frisian kai →Every word from Saterland Frisian Koai →