Etymology Borrowed from Italian bandito (“outlawed”), a derivative of Italian bandire (“to ban”), from Late Latin bandīre, an alteration (due to Gothic 𐌱𐌰𐌽𐌳𐍅𐌾𐌰𐌽 (bandwjan, “to signal”)) of Late Latin bannīre (“to ban”), from Frankish *bannan (“to ban”). Doublet of bandito.
1
One who robs others in a lawless area, especially as part of a group.
Do you recollect a story my nurse told us of a Sicilian bandit, the terror of the country?—how he saved a young child from a cottage on fire, brought it up delicately, and far removed from his own pursuits; while, at his execution, his chief regret was the future provision for that boy?1834, L[etitia] E[lizabeth] L[andon], chapter XV, in Francesca Carrara. […], volume II, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 173:
Etymology Borrowed from Italian bandito (“outlawed”), a derivative of Italian bandire (“to ban”), from Late Latin bandīre, an alteration (due to Gothic 𐌱𐌰𐌽𐌳𐍅𐌾𐌰𐌽 (bandwjan, “to signal”)) of Late Latin bannīre (“to ban”), from Frankish *bannan (“to ban”). Doublet of bandito.
1
Ambitransitive To rob, or steal from, in the manner of a bandit.
First, she read the bandit news in the paper, and was rather disappointed to learn that her man had evidently taken a night off from banditing. An imitator of the bandit had made an unsuccessful attempt to hold up a drug-store, and had backed out and run when the nervy proprietor reached for a gun; but that was all.1921, Munsey's Magazine, volume 74, page 38:
As the sanctuary was bandited at least once, it may be that the silver wine cups I have are from the treasure.1937, The Atlantic Monthly, volume 160, page 7: