Here's how it breaks down:
* "Contempt" is the noun form, meaning "the feeling that a person or a thing is worthless or deserving of scorn."
* "Contemptuous" is the adjective form, meaning "showing or expressing contempt."
While "tempt" doesn't directly translate to "contempt," it's the root word because "contempt" originated from the idea of *testing* or *proving* something's worth. In the past, "tempt" meant "to test or prove," and this idea of proving something's worthlessness evolved into the meaning of "contempt" we use today.