Where does “辛亥” come from?

辛亥 (Japanese) comes from Japanese 亥, from Japanese 猪, from Japanese の, from Old Japanese の, from Middle Chinese 能 — talent, ability.

辛亥 (Japanese): Metal Boar, the forty-eighth term of the sexagenary cycle

Definitions

  1. Metal Boar, the forty-eighth term of the sexagenary cycle

Ancestry of “辛亥”, step by step

辛亥 traces back through two separate lines of ancestry.

via Japanese 亥

StepLanguageWordMeaning
1Japanese亥the Boar, the twelfth of the twelve Earthly Branches
2Japanese猪a wild boar, "Sus scrofa"; a pig or wild boar;...
3Japaneseのgenitive case marker; nominative case marker in a...
4Old Japaneseのplain, field
5Middle Chinese能talent, ability

via Japanese 辛

StepLanguageWordMeaning
1Japanese辛spicy
2Middle Chinese辛—
Every word from Middle Chinese 能 →Every word from Old Japanese の →Every word from Japanese の →