Where does “よびこう” come from?

よびこう (Japanese) comes from Japanese こう, from Middle Chinese 口.

よびこう (Japanese): prep school, cram school; privately-run schools marketed to students taking examinations for college admissions

Definitions

  1. prep school, cram school; privately-run schools marketed to students taking examinations for college admissions

Ancestry of “よびこう”, step by step

よびこう traces back through two separate lines of ancestry.

via Japanese こう

StepLanguageWordMeaning
1Japaneseこうlike this, in this way, so, thus
2Middle Chinese口—

via Japanese よび

StepLanguageWordMeaning
1Japaneseよび—
Every word from Middle Chinese 口 →Every word from Japanese こう →