Where does “六国史” come from?

六国史 (Japanese) comes from Japanese 六, from Late Middle Chinese 六.

六国史 (Japanese): the Six National Histories

Definitions

  1. the Six National Histories

Ancestry of “六国史”, step by step

六国史 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesesix; a name of a hole of a wind instrument
2Late Middle Chinese

via Japanese 国史

StepLanguageWordMeaning
1Japanese国史the national history
Every word from Late Middle Chinese Every word from Japanese