Where does “Fetischistin” come from?

Fetischistin (German) comes from German -īn, from Middle High German -īn.

Ancestry of “Fetischistin”, step by step

StepLanguageWordMeaning
1German-īncreates the female form for many nouns for living beings; umlaut usually occurs in monosyllables, but rarely in polysyllables
2Middle High German-īn
Every word from Middle High German -īnEvery word from German -īn