Where does “乾布摩擦” come from?

乾布摩擦 (Japanese) comes from Japanese 乾, from Chinese 乾, from Proto-Sino-Tibetan m-ka-n — heaven; sky; sun.

乾布摩擦 (Japanese): The activity of rubbing one's body with a dry cloth, thought to strengthen or warm up one's skin, and therefore to prevent from winter illnesses, such as cold

Definitions

  1. The activity of rubbing one's body with a dry cloth, thought to strengthen or warm up one's skin, and therefore to prevent from winter illnesses, such as cold

Ancestry of “乾布摩擦”, step by step

乾布摩擦 traces back through 3 separate lines of ancestry.

via Japanese 乾

StepLanguageWordMeaning
1Japanese乾northwest
2Chinese乾—
3Proto-Sino-Tibetanm-ka-nheaven; sky; sun

via Japanese 布

StepLanguageWordMeaning
1Japanese布cloth
2Middle Chinese布—

via Japanese 摩擦

StepLanguageWordMeaning
1Japanese摩擦friction
Every word from Proto-Sino-Tibetan m-ka-n →Every word from Chinese 乾 →Every word from Japanese 乾 →