First attested in the early second century CE, of disputed origin: either a late borrowing from Proto-Germanic *burgz (or from a descendant in a daughter language, such as Frankish *burg or Gothic 𐌱𐌰𐌿𐍂𐌲𐍃 (baurgs)) or from Ancient Greek πύργος (púrgos).
- (Late Latin, originally) A fort or castle, especially a smaller one; a watchtower.
- (Late Latin, generally) A fortified town; a walled town.
- (Medieval Latin) A borough: a town specially incorporated and with special rights.
- Old French: burc, burg, borc, bourg, bourc
- Italian: borgo
- Old Portuguese: burgo
- Old Occitan: burg, burc
- Sardinian: burgu