Where does “干支” come from?

干支 (Japanese) comes from Japanese 兄, from Old Japanese あに, from Japanese の, from Old Japanese の, from Middle Chinese 能 — talent, ability.

干支 (Japanese): the sexagenary cycle; the twelve earthly branches

Definitions

  1. the sexagenary cycle; the twelve earthly branches

Ancestry of “干支”, step by step

干支 traces back through two separate lines of ancestry.

via Japanese 兄

StepLanguageWordMeaning
1Japanese兄elder brother; elder brother-in-law; Short for...
2Old Japaneseあに—
3Japaneseのgenitive case marker; nominative case marker in a...
4Old Japaneseのplain, field
5Middle Chinese能talent, ability

via Japanese 弟

StepLanguageWordMeaning
1Japanese弟a younger sibling; one’s own younger brother; a...
Every word from Middle Chinese 能 →Every word from Old Japanese の →Every word from Japanese の →