Fetish (noun)

1. An object or bodily part whose real or fantasized presence is psychologically necessary for sexual gratification and that is an object of fixation to the extent that it may interfere with complete sexual expression.
2. An object or non-human entity which is treated with reverence or worshipped, or to which one is excessively devoted.

Origin:

From portuguese feitiço "charm, fetish", from latin facticius "made by art, artificial", from facere "to make".

Examples:

1. He had a fetish for high heels and always wanted his partner to wear them during sex.
2. The fetish for small feet is not well understood, but it is considered a form of body dysmorphic disorder.
3. The tribe had a fetish for the sacred rock, which was believed to have healing powers.
4. The businessman had a fetish for collecting antique watches.
5. The fetish for vintage cars is not limited to men, some women also share this passion.