Where does “Лхас” come from?

Лхас (Mongolian) comes from Classical Mongolian ᡀᠠᠰᠠ, from Tibetan ལྷ་ས, from Old Tibetan ར་ས.

Ancestry of “Лхас”, step by step

StepLanguageWordMeaning
1Classical MongolianᡀᠠᠰᠠLhasa
2Tibetanལྷ་སLhasa
3Old Tibetanར་ས—
Every word from Old Tibetan ར་ས →Every word from Tibetan ལྷ་ས →Every word from Classical Mongolian ᡀᠠᠰᠠ →