Where does “ཚེས་དྲུག” come from?

ཚེས་དྲུག (Tibetan) comes from Tibetan དྲུག, from Proto-Sino-Tibetan d-k-ruk — six.

Ancestry of “ཚེས་དྲུག”, step by step

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

via Tibetan དྲུག

StepLanguageWordMeaning
1Tibetanདྲུགsix
2Proto-Sino-Tibetand-k-ruksix

via Tibetan ཚེས

StepLanguageWordMeaning
1Tibetanཚེསdate, day of the month
Every word from Proto-Sino-Tibetan d-k-ruk →Every word from Tibetan དྲུག →