What term describes mockery or scorn directed at someone?

The term that describes mockery or scorn directed at someone is "derision." Derision is often used in contexts where individuals express contempt or ridicule towards others, typically highlighting their flaws or shortcomings in a dismissive manner. This can be seen in various forms of communication, including speech or literature, where its intent is to belittle or undermine the person being mocked.

The other terms have distinct meanings that do not align with the concept of mockery. "Derivation" refers to the process of obtaining something from a source, often used in linguistic contexts. "Detraction" involves criticism that takes away from someone's reputation but doesn't necessarily imply mockery or ridicule. "Diligence" signifies careful and persistent work or effort, which is fundamentally different from the idea of desiring to belittle someone. Thus, "derision" is the most accurate term for scornful or mocking behavior.