Where does “Tibetanist” come from?

Tibetanist (English) comes from English ist, from English -ist, from Old French -iste, from Latin -ista, from Ancient Greek -ιστής, from Ancient Greek -τής, from Proto-Hellenic -tās.

Ancestry of “Tibetanist”, step by step

Tibetanist traces back through two separate lines of ancestry.

via English ist

StepLanguageWordMeaning
1EnglishistA practitioner or supporter of an ism
2English-istAdded to words to form nouns denoting
3Old French-iste—
4Latin-ista-ist; one who practises or believes
5Ancient Greek-ιστήςAlternative form of -τής; -ist
6Ancient Greek-τήςAppended to verbs to form agent nouns
7Proto-Hellenic-tās—

via English tibetan

StepLanguageWordMeaning
1EnglishtibetanPertaining to Tibet, the Tibetan people, culture, or language
2English-ánOf or pertaining to;. Often added to words of Latin origin, but also used with words of other origins. When a word ends in a
3Middle English-an—
Every word from Proto-Hellenic -tās →Every word from English -ist →Every word from Ancient Greek -τής →