Where does “信州” come from?

信州 (Japanese) comes from Japanese 州, from Middle Chinese 洲.

Ancestry of “信州”, step by step

信州 traces back through two separate lines of ancestry.

via Japanese 州

StepLanguageWordMeaning
1Japanese州state; province of Canada; canton of Switzerland
2Middle Chinese洲—

via Japanese 信

StepLanguageWordMeaning
1Japanese信trust, faith
2Middle Chinese信—
Every word from Middle Chinese 洲 →Every word from Japanese 州 →