Where does “雨” come from?

雨 (Chinese) comes from Proto-Sino-Tibetan *rV-waʔ — rain.

Ancestry of “雨”, step by step

StepLanguageWordMeaning
1Proto-Sino-Tibetan*rV-waʔrain

Words derived from “雨”

Every word from Proto-Sino-Tibetan *rV-waʔ →