Rooms, spaces, or stations where sentries or guards keep watch; watchtowers or guardhouses.
From Latin excubitoria, the neuter plural of excubitorium, derived from excubare, referring to military outposts and sentry boxes in Roman forts.
This technical term for Roman guard stations shows how English borrowed words from military history—you can still see the 'excub-' root in these architectural and military terms.
Complete word intelligence in one call. Free tier — 50 lookups/day.