Where does “稚內” come from?

稚內 (Chinese) comes from Japanese 稚内, from Ainu ヤㇺ ワッカ ナイ, from Ainu ナイ — river.

Ancestry of “稚內”, step by step

StepLanguageWordMeaning
1Japanese稚内—
2Ainuヤㇺ ワッカ ナイ—
3Ainuナイriver
Every word from Ainu ナイ →Every word from Ainu ヤㇺ ワッカ ナイ →Every word from Japanese 稚内 →