Where does “赤海亀” come from?

赤海亀 (Japanese) comes from Japanese 海亀, from Japanese 海, from Old Japanese うな.

赤海亀 (Japanese): a loggerhead sea turtle

Definitions

  1. a loggerhead sea turtle

Ancestry of “赤海亀”, step by step

赤海亀 traces back through two separate lines of ancestry.

via Japanese 海亀

StepLanguageWordMeaning
1Japanese海亀a sea turtle
2Japanese海a sea, an ocean; a lake; an object covering over...
3Old Japaneseうな—

via Japanese 赤

StepLanguageWordMeaning
1Japanese赤red; communism, socialism; a communist
Every word from Old Japanese うな →Every word from Japanese 海 →Every word from Japanese 海亀 →