IPA: /ˈfɛtɪʃɪst/
KK: /ˈfɛtɪʃɪst/
A person who has a strong and persistent sexual attraction to a specific object, body part, or activity that is not typically considered sexual.
He is a fetishist who is particularly attracted to high-heeled shoes.
Fetishist → It is formed from "fetish" (from French *fétiche*, meaning an object of worship or devotion) and "-ist" (meaning a person who practices or is associated with). A fetishist is a person who has a strong devotion or attraction to a specific object or body part, often in a sexual context.
Think of someone who has a strong 'devotion' ('fetish') to a particular object or aspect — the '-ist' indicates that this person is associated with that devotion.
No commonly confused words.