desservir

Desservir in French means 'to un-serve' or 'to clear the table': des- (un-, away) + servir (to serve). The past participle desservi became the noun dessert — the course served after the table had been cleared of the main dishes. The word names a moment in the meal, not a category of food. Dessert is what comes after everything else has been taken away. The emptying of the table is the definition.

The concept of a sweet final course existed long before the French word. Roman cenae ended with a secundae mensae (second table) of fruits, nuts, and sweet cakes. Medieval European banquets concluded with a 'void' or 'banquet' course of spiced wine and candied fruits, served in a separate room after the dining hall was cleared. The French dessert formalized and named what had been practiced for centuries.

English borrowed dessert from French in the sixteenth century. The British English distinction between 'pudding' (the sweet course) and 'dessert' (fruit and cheese served after pudding) persisted into the twentieth century. American English collapsed the distinction: dessert means any sweet course. The British usage was more precise. The American usage won by volume.

The dessert menu — the separate card presented after the main courses — is a restaurant innovation of the nineteenth century. It creates a decision point where the diner might otherwise stop eating. The menu within the menu. The choice after the clearing. The entire concept is French in structure: the meal has a narrative arc, and dessert is the final act.