Where does “八時” come from?

八時 (Japanese) comes from Japanese 時, from Old Japanese 時, from Old Japanese しだ — a time, circumstance, occasion.

八時 (Japanese): eight o'clock

Definitions

  1. eight o'clock

Ancestry of “八時”, step by step

八時 traces back through two separate lines of ancestry.

via Japanese 時

StepLanguageWordMeaning
1Japanese時time; an event, case, occasion, moment; a...
2Old Japanese時a time, moment (in time), occasion
3Old Japaneseしだa time, circumstance, occasion

via Japanese 八

StepLanguageWordMeaning
1Japanese八eight, 8; eight; Short for 八の字
2Middle Chinese八—
Every word from Old Japanese しだ →Every word from Old Japanese 時 →Every word from Japanese 時 →
八時 — Etymology, Origin & Word History | Etymology Explorer