bandit

Concise Oxford English Dictionary © 2008 Oxford University Press:
bandit/ˈbandɪt/

▶noun (pl. bandits or banditti /banˈdiːti/)

• 1 a violent robber or outlaw belonging to a gang.

• 2 military slang an enemy aircraft.

– derivatives
banditry noun.

– origin C16: from Ital. bandito, bandire ‘ban’.