Where does “真っ青” come from?

真っ青 (Japanese) comes from Japanese 真青, from Japanese 真, from Chinese 似.

真っ青 (Japanese): deep blue; pallor; cobalt blue

Definitions

  1. deep blue; pallor; cobalt blue

Ancestry of “真っ青”, step by step

StepLanguageWordMeaning
1Japanese真青deep blue, purely or entirely blue
2Japanese真truth, reality; truth, reality, genuineness;...
3Chinese似—
Every word from Chinese 似 →Every word from Japanese 真 →Every word from Japanese 真青 →