Where does “十九日” come from?

十九日 (Japanese) comes from Japanese 日, from Old Japanese 日, from Proto-Japonic *pi — day, sun.

十九日 (Japanese): nineteen days

Definitions

  1. nineteen days

Ancestry of “十九日”, step by step

十九日 traces back through 3 separate lines of ancestry.

via Japanese 日

StepLanguageWordMeaning
1Japanese日Sunday
2Old Japanese日the sun; sunlight, sunshine; daytime, daylight
3Proto-Japonic*piday, sun

via Japanese 九

StepLanguageWordMeaning
1Japanese九nine; ninth; the ninth
2Old Japanese九—

via Japanese 十

StepLanguageWordMeaning
1Japanese十ten, 10; a ten-year-old
2Middle Chinese十—
Every word from Proto-Japonic *pi →Every word from Old Japanese 日 →Every word from Japanese 日 →