Where does “土曜日” come from?

土曜日 (Japanese) comes from Japanese 日, from Old Japanese 日, from Proto-Japonic *pi — day, sun.

土曜日 (Japanese): Saturday

Definitions

  1. Saturday

Ancestry of “土曜日”, step by step

土曜日 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1JapaneseSunday
2Old Japanesethe sun; sunlight, sunshine; daytime, daylight
3Proto-Japonic*piday, sun

via Japanese 土曜

StepLanguageWordMeaning
1Japanese土曜planet Saturn; Saturday
Every word from Proto-Japonic *piEvery word from Old Japanese Every word from Japanese
土曜日 — Etymology, Origin & Word History | Etymology Explorer