Railleur

Part of speech: noun

Definitions

1. An individual skilled in using humor to mock or tease others with a sharp, satirical edge can be called someone who engages in this kind of witty banter
2. A person adept at employing irony and sarcasm to ridicule or highlight the shortcomings of others exemplifies this form of playful criticism
3. A person who possesses the ability to use clever humor and wit to mock or satirize others effectively represents this type of mocking commentary

Etymology: "Railleur" is a French word for a person who teases or mocks, and English borrowed it directly from French. The French noun comes from "railler", meaning to jest at or ridicule someone, with the "-eur" ending marking a person who performs the action, much as English "-er" does in "mocker". The verb "railler" has its own roots in the medieval world of wordplay and banter, though the precise chain of its development is not something to build a story on here. What matters for English readers is that "railleur" arrived as a ready-made French term for a certain kind of sharp-tongued person, and English speakers adopted it to describe someone whose habit is ridicule rather than open insult.