Where does “硫黄島” come from?

硫黄島 (Japanese) comes from Japanese 硫黄, from Japanese 湯, from Old Japanese ゆ, from Proto-Japonic *yu — hot water.

硫黄島 (Japanese): Iwo Jima

Definitions

  1. Iwo Jima

Ancestry of “硫黄島”, step by step

硫黄島 traces back through two separate lines of ancestry.

via Japanese 硫黄

StepLanguageWordMeaning
1Japanese硫黄sulfur
2Japanese湯warm or hot water; bathwater; a hot spring
3Old Japaneseゆattaches to the
4Proto-Japonic*yuhot water

via Japanese 島

StepLanguageWordMeaning
1Japanese島an island; one's domain, territory, turf
2Middle Chinese島—
Every word from Proto-Japonic *yu →Every word from Old Japanese ゆ →Every word from Japanese 湯 →