sandwich
n.a type of food made by putting something between two slices of bread. It is common in many countries and often eaten as a quick meal.
n.a food item consisting of a filling placed between two slices of bread.
“She ate a sandwich for lunch.”
“The student bought a turkey and cheese sandwich from the cafeteria before class.”
“The gourmet restaurant offered a deconstructed sandwich experience, serving the ingredients separately with a detailed explanation of the chef's creative process.”
First recorded 1762, and named — like so much in English — after a man who couldn't be bothered to get up. John Montagu, 4th Earl of Sandwich, was an inveterate gambler; rather than abandon the table for a proper meal, he had cold meat brought between bread, and the habit outlasted him.
The Earl's own title is toponymic, from Sandwich in Kent — one of the Cinque Ports — via Old English Sandwicæ, "sandy harbour". Cook repaid the patronage in 1778 by naming the Hawaiian Islands the Sandwich Islands; the archipelago quietly dropped the name the moment they got the chance.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.