Where does “湯種” come from?

湯種 (Chinese) comes from Japanese ゆだね, from Japanese 湯, from Old Japanese ゆ, from Proto-Japonic *yu — hot water.

湯種 (Chinese): water roux; tangzhong; yudane

Definitions

  1. water roux; tangzhong; yudane

Ancestry of “湯種”, step by step

湯種 traces back through two separate lines of ancestry.

via Japanese ゆだね

StepLanguageWordMeaning
1Japaneseゆだねwater roux; yudane; tangzhong
2Japanese湯warm or hot water; bathwater; a hot spring
3Old Japaneseゆattaches to the
4Proto-Japonic*yuhot water

via Japanese 湯種

StepLanguageWordMeaning
1Japanese湯種—
Every word from Proto-Japonic *yu →Every word from Old Japanese ゆ →Every word from Japanese 湯 →