Where does “大空” come from?

大空 (Japanese) comes from Japanese 大, from Old Japanese 大, from Proto-Japonic əpə — big, large; many.

大空 (Japanese): firmament; heavens; sky

Definitions

  1. firmament; heavens; sky

Ancestry of “大空”, step by step

大空 traces back through two separate lines of ancestry.

via Japanese 大

StepLanguageWordMeaning
1Japanese大big, large; the large part of; arch-
2Old Japanese大big, large; large
3Proto-Japonicəpəbig, large; many

via Japanese 空

StepLanguageWordMeaning
1Japanese空the sky; something empty; ineffectual
2Middle Chinese空—
Every word from Proto-Japonic əpə →Every word from Old Japanese 大 →Every word from Japanese 大 →