Where does “紅差し指” come from?

紅差し指 (Japanese) comes from Japanese 紅, from Middle Chinese 紅.

紅差し指 (Japanese): ring finger

Definitions

  1. ring finger

Ancestry of “紅差し指”, step by step

紅差し指 traces back through 3 separate lines of ancestry.

via Japanese 紅

StepLanguageWordMeaning
1Japanese紅the color crimson, a vivid red edging towards...
2Middle Chinese紅—

via Japanese 指

StepLanguageWordMeaning
1Japanese指a finger

via Japanese 差し

StepLanguageWordMeaning
1Japanese差しthe act of shining on something, such as sunlight
Every word from Middle Chinese 紅 →Every word from Japanese 紅 →