The earliest evidence for soup in human culinary practice dates to the Upper Palaeolithic period when thermally altered rocks became commonplace in the archaeological record. Small boiling pits are present on the Gravettian site Pavlov Cobbles were heated on the hearth and then placed into the water to bring it to boil. However, the antiquity of soup is highly contested. Based on ethnographic evidence, some archaeologists conjecture that early humans employed hides and watertight baskets to boil water.
The word soup comes from French soupe ('soup", "broth"), which comes through Vulgar Latin suppa ("bread soaked in broth") from a Germanic source, from which also comes the word "sop", a piece of bread used to soak up soup or a thick stew.
The word restaurant (meaning "[something] restoring") was first used in France in the 16th century, to refer to a highly concentrated, inexpensive soup, sold by street vendors, that was advertised as an antidote to physical exhaustion. In 1765, according to Prosper Montagné's Larousse Gastronomique, a Parisian entrepreneur opened a shop specializing in such soups. This prompted the use of the modern word restaurant to refer to eating establishments.