Where does “納木錯” come from?

納木錯 (Chinese) comes from Tibetan གནམ་མཚོ, from Tibetan གནམ, from Proto-Sino-Tibetan g-nam — sky, sun.

Ancestry of “納木錯”, step by step

StepLanguageWordMeaning
1Tibetanགནམ་མཚོ—
2Tibetanགནམsky; air, weather
3Proto-Sino-Tibetang-namsky, sun
Every word from Proto-Sino-Tibetan g-nam →Every word from Tibetan གནམ →Every word from Tibetan གནམ་མཚོ →