- rogue (n.)
- 1560s, "idle vagrant," perhaps a shortened form of roger (with a hard -g-), thieves' slang for a begging vagabond who pretends to be a poor scholar from Oxford or Cambridge, perhaps from Latin rogare "to ask." Another theory traces it to Celtic (cf. Breton rog "haughty"); OED says, "There is no evidence of connexion with F. rogue 'arrogant.' " Rogue's gallery "police collection of mug shots" is attested from 1859.