Where does “書司” come from?

書司 (Japanese) comes from Japanese の, from Old Japanese の, from Middle Chinese 能 — talent, ability.

書司 (Japanese): a 律令 position in the 後宮 that manages books and stationery

Definitions

  1. a 律令 position in the 後宮 that manages books and stationery

Ancestry of “書司”, step by step

書司 traces back through 3 separate lines of ancestry.

via Japanese の

StepLanguageWordMeaning
1Japaneseのgenitive case marker; nominative case marker in a...
2Old Japaneseのplain, field
3Middle Chinese能talent, ability

via Japanese 書

StepLanguageWordMeaning
1Japanese書document; letter
2Middle Chinese書—

via Japanese 司

StepLanguageWordMeaning
1Japanese司official; government official
Every word from Middle Chinese 能 →Every word from Old Japanese の →Every word from Japanese の →