Where does “crisoterapia” come from?

crisoterapia (Italian) comes from Italian terapia, from Italian -ista, from Latin -ista, from Ancient Greek -ιστής, from Ancient Greek -τής, from Proto-Hellenic -tās.

Ancestry of “crisoterapia”, step by step

Step	Language	Word	Meaning
1	Italian	terapia	therapy, treatment
2	Italian	-ista	-ist
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 Ancient Greek -τής →Every word from Latin -ista →