Webster's Revised Unabridged Dictionary · 1913

fetichism

fetichism (? o?) , noun

[Compare French fétichisme.]

1.
The doctrine or practice of belief in fetiches.
2.
Excessive devotion to one object or one idea; abject superstition; blind adoration.
The real and absolute worship of fire falls into two great divisions, the first belonging rather to fetichism, the second to polytheism proper. — Tylor

Also: Fetishism