Where does “大潮差” come from?

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

大潮差 (Japanese): spring range; spring tide range

Definitions

  1. spring range; spring tide range

Ancestry of “大潮差”, step by step

大潮差 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 潮差

StepLanguageWordMeaning
1Japanese潮差tidal range, tidal change
Every word from Proto-Japonic əpə →Every word from Old Japanese 大 →Every word from Japanese 大 →