Word Origin & History
innO.E. inn "lodging, dwelling, house," probably from inne (adv.) "inside, within." Meaning "public house with lodging" is possibly 12c., definitely by c.1400. Meaning "lodging house or residence for students" is 1214 in Anglo-L., obsolete except in names of buildings that were so used (e.g. Inns of Court,
EXPAND1436).
COLLAPSE