"cry made in jumping," from the story of the Apache leader Geronimo making a daring leap to escape U.S. cavalry pursuers at Medicine Bluffs, Okla. (and supposedly shouting his name in defiance as he did). Adopted as battle cry by 82nd Airborne U.S. paratroopers in World War II, who perhaps had seen it in a movie. The name is the It. and Sp. form of Jerome, from Gk. Hieronomos, lit. "sacred name."
An Apache leader of the late nineteenth and early twentieth centuries. A brave and unrelenting warrior, Geronimo was among the last to lead Native Americans against white settlers. He took to farming at the end of his life.