Where does “*rowᴮ” come from?

*rowᴮ (Proto-Karen) comes from Proto-Sino-Tibetan s-b/m-ruːl — snake.

Ancestry of “*rowᴮ”, step by step

StepLanguageWordMeaning
1Proto-Sino-Tibetans-b/m-ruːlsnake
Every word from Proto-Sino-Tibetan s-b/m-ruːl