Where does “紺青” come from?

紺青 (Japanese) comes from Japanese 青, from Middle Chinese 青.

紺青 (Japanese): Prussian blue, deep blue, dark blue, ultramarine

Definitions

  1. Prussian blue, deep blue, dark blue, ultramarine

Ancestry of “紺青”, step by step

紺青 traces back through two separate lines of ancestry.

via Japanese 青

StepLanguageWordMeaning
1Japanese青blue
2Middle Chinese青—

via Japanese 紺

StepLanguageWordMeaning
1Japanese紺navy blue, dark blue
Every word from Middle Chinese 青 →Every word from Japanese 青 →