Which word refers to speaking of something with contempt and mirth?

The term that refers to speaking of something with both contempt and mirth is "deride." This word is used when someone mocks or scorns another person or concept, often in a way that conveys a sense of humor or playfulness. Derision can be expressed in various forms, including laughter, sarcasm, or disdainful remarks. This quality of combining contempt with an amusing tone is crucial in understanding the full implications of the word.

In contrast, "deluge" refers to a severe flood or an overwhelming amount of something, which doesn’t fit the context of contemptuous humor. "Deplete" means to use up resources or diminish something, and it does not relate to speaking about a subject. "Dainty" describes something that is delicate, elegant, or fragile, which again does not correlate with the idea of expressing contempt with humor. Thus, "deride" stands out as the appropriate word that encapsulates speaking with contempt and mirth.