patrimonium

PATRIMONIUM, civil law. That which is capable, of being inherited. 
     2. Things capable of being possessed by a single person exclusively of 
all others, are, in the Roman or civil law, said to be in patrimonio; when 
incapable of being so possessed they are extra-patrimonium. 
     3. In general, things may be inherited, but there are some which are 
said to be extra patrimonium, or which are not in commerce. These are such 
as are common, as the light of heaven, the air, the sea, and the like. 
Things public, as rivers, harbors, roads, creeks, ports, arms of the sea, 
the, seashore, highways, bridges, and the like. Things which belong to 
cities and municipal corporations, as public squares, streets, market 
houses, and the like. See, 1 Bouv. Inst. n. 421 to 446.