the.com/condominium

means A privately owned individual unit within a larger building or complex, where common areas like hallways, roofs, and grounds are jointly owned and maintained by all unit owners together.

from Built from Latin 'com-' (together) plus 'dominium' (ownership, lordship, from 'dominus,' lord or master) — so literally 'joint ownership' or 'co-lordship.' The word was already used in Latin-rooted legal contexts for shared sovereignty or jointly ruled territory before it got pulled into property law to describe a building where everyone owns their slice but shares dominion over the roof, lobby, and pipes. The modern housing sense took off in the 20th century as cities needed a legal structure for people to own a single floor of air inside someone else's walls.