Why do they call it a relish tray?

Relish trays are shallow dishes designed for holding pickled condiments like dill pickles, gherkins, olives, and pickled peppers. The word relish is derived from the old French word "relescher" which means to lick the lips, alluding to the tangy and flavorful nature of these condiments that prompt eager licking of the lips. These trays are often served as appetizers, snacks, or with meals to add a flavorful twist and variety to the main dish.