Where does “カイ” come from?

カイ (Japanese) comes from English Chi, from English Chicago, from French Chécagou, from Miami šikaakwa, from Proto-Algonquian šeka·kwa, from Proto-Algonquian šek- — to urinate.

Ancestry of “カイ”, step by step

StepLanguageWordMeaning
1EnglishChiChihuahua
2EnglishChicagolocated on Lake Michigan
3FrenchChécagou—
4Miamišikaakwathe striped skunk, Mephitis mephitis
5Proto-Algonquianšeka·kwaskunk
6Proto-Algonquianšek-to urinate
Every word from Proto-Algonquian šek- →Every word from Proto-Algonquian šeka·kwa →Every word from Miami šikaakwa →