Where does “湯たんぽ” come from?

湯たんぽ (Japanese) comes from Japanese 湯, from Old Japanese ゆ, from Proto-Japonic *yu — hot water.

湯たんぽ (Japanese): a hot water bottle

Definitions

  1. a hot water bottle

Ancestry of “湯たんぽ”, step by step

湯たんぽ traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesewarm or hot water; bathwater; a hot spring
2Old Japaneseattaches to the
3Proto-Japonic*yuhot water

via Japanese 湯婆

StepLanguageWordMeaning
1Japanese湯婆a hot water bottle
Every word from Proto-Japonic *yuEvery word from Old Japanese Every word from Japanese