Where does “-tsaah” come from?

-tsaah (Navajo) comes from Proto-Sino-Tibetan tsa, from Chinese 茶, from Proto-Loloish la¹, from Proto-Sino-Tibetan s-la — leaf; tea; flat object.

Ancestry of “-tsaah”, step by step

StepLanguageWordMeaning
1Proto-Sino-Tibetantsasalt, salty, salted
2Chinese茶tea
3Proto-Loloishla¹tea
4Proto-Sino-Tibetans-laleaf; tea; flat object
Every word from Proto-Sino-Tibetan s-la →Every word from Proto-Loloish la¹ →Every word from Chinese 茶 →