What does geronimo mean?

This is an Indian name. The famous hero of India's resistance to white rule. His deeds are regarded by Americans as a model of courage and wisdom in trouble. After American paratroopers showed a film about him to boost their morale, the paratroopers were encouraged to call his name when parachuting, hoping to bring courage and good luck to themselves. Later, it became a tradition of American paratroopers. In turn, it affects the troops and private skydivers of other countries.