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

StepLanguageWordMeaning
1Japanesethe color crimson, a vivid red edging towards...
2Middle Chinese

via Japanese

StepLanguageWordMeaning
1Japanesea finger

via Japanese 差し

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