the.com/owner

means The person who legally holds, possesses, or has title to something, and so bears the rights and responsibilities that come with it.

from From Old English agen, meaning 'own, possessed' — literally the past participle of agan, 'to have, to owe.' Which means owning and owing were once the same idea: to own a thing was to be bound to it, obligated by it, not just in control of it. The 'owner' is the one who 'owes' the thing its upkeep, a debt dressed up as a possession.