Where does “十分” come from?

十分 (Japanese) comes from Japanese 分, from Middle Chinese ふん, from Middle Chinese 糞.

十分 (Japanese): fully, thoroughly; ten minutes

Definitions

  1. fully, thoroughly; ten minutes

Ancestry of “十分”, step by step

十分 traces back through two separate lines of ancestry.

via Japanese 分

StepLanguageWordMeaning
1Japanese分a minute; a part, a share, a portion; an obsolete...
2Middle Chineseふん—
3Middle Chinese糞—

via Japanese 十

StepLanguageWordMeaning
1Japanese十ten, 10; a ten-year-old
2Middle Chinese十—
Every word from Middle Chinese 糞 →Every word from Middle Chinese ふん →Every word from Japanese 分 →