fetish vs concupiscence

fetish and concupiscence both are nouns.

Word	Noun	Adjective	Verb	Adverb
fetish	Yes	No	No	No
concupiscence	Yes	No	No	No

As nouns, concupiscence is a hypernym of fetish; that is, concupiscence is a word with a broader meaning than fetish:

fetish: a form of sexual desire in which gratification depends to an abnormal degree on some object or item of clothing or part of the body
concupiscence: a desire for sexual intimacy

Other hypernyms of fetish include eros, physical attraction, sexual desire.

fetish (noun)	concupiscence (noun)
excessive or irrational devotion to some activity	a desire for sexual intimacy
a charm superstitiously believed to embody magical powers
a form of sexual desire in which gratification depends to an abnormal degree on some object or item of clothing or part of the body