Where does “avant-gardist” come from?

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

avant-gardist (English): A person who is avant-garde or espouses...

Definitions

A person who is avant-garde or espouses...

Ancestry of “avant-gardist”, step by step

Step	Language	Word	Meaning
1	English	-ist	Added to words to form nouns denoting
2	Old French	-iste	—
3	Latin	-ista	-ist; one who practises or believes
4	Ancient Greek	-ιστής	Alternative form of -τής; -ist
5	Ancient Greek	-τής	Appended to verbs to form agent nouns
6	Proto-Hellenic	-tās	—

Every word from Proto-Hellenic -tās →Every word from English -ist →Every word from Ancient Greek -τής →