18th Century word origin

M. Boulanger, signaling the post-revolutionary end of great aristocratic kitchens in France and the beginning of chefs making themselves commercially available for the masses, put a sign outside his Parisian soup restaurant in 1765, saying...

 "Venite omnes qui stomacho laboratis, et ego restauranto vos."

[or, "Come all ye who labor with the stomach, and I will restore you"].

 Thus today's word "restaurant" from restauranto.