Which grammatical case is abbreviated "nom."?

Which term for a gracious gesture is also the title of a 1939 Gary Cooper film about three brothers in the French Forei… A graduate of Chicago's DePaul University, who was the city's mayor from 1955 to 1976? A graduate of Howard University, who won the Nobel Prize in Literature in 1993? What is a single grain or seed of an ear of corn called? A Grand Alliance was formed in 1689 against which French "Sun King"? A grand duchy named for which city was created by Napoleon in 1807 to partly restore the Polish state? How many legs does a grand piano normally have? A grandson of Man o' War, which horse beat War Admiral in a famous match race on November 1, 1938?