means A small establishment, especially along a road, that offers travelers lodging, food, and drink for the night.

from From Old English 'inn,' meaning a dwelling or lodging place — closely tied to the word 'in,' the simple notion of a place you go *inside* to shelter. The same root sense of 'within' threads through both words: an inn was, quite literally, somewhere to be in. The sense of a commercial house for travelers grew over the medieval centuries, and the word still lingers in the names of England's old legal societies, the Inns of Court, where it once meant a residence for students of law.