Where does “ཚེས་གཉིས” come from?

ཚེས་གཉིས (Tibetan) comes from Tibetan གཉིས, from Proto-Sino-Tibetan *kV-ni-s — two.

Ancestry of “ཚེས་གཉིས”, step by step

ཚེས་གཉིས traces back through two separate lines of ancestry.

via Tibetan གཉིས

StepLanguageWordMeaning
1Tibetanགཉིསtwo
2Proto-Sino-Tibetan*kV-ni-stwo

via Tibetan ཚེས

StepLanguageWordMeaning
1Tibetanཚེསdate, day of the month
Every word from Proto-Sino-Tibetan *kV-ni-s →Every word from Tibetan གཉིས →