legacy

Money or property bequeathed to someone in a will.

Something inherited from a predecessor or the past.

John Muir left as his legacy an enduring spirit of respect for the environment.

During the first year or so of British Railways, some of the simpler and more obvious inter-regional transfers of outlying sections were effected, such as those of the London, Tilbury & Southend Railway from the London Midland Region to the Eastern Region; the South Wales lines of the former L.M.S.R. to the Western Region; the Carlisle-Silloth branch (an L.N.E.R. legacy of a North British "border raid") to the London Midland, and so on.

The descendant of an alumnus, given preference in academic admissions.

Because she was a legacy, her mother's sorority rushed her.

Left over from the past; old and no longer current.

They have no idea what occurs in the network or its topology, and all of the services remain dependent on it — a very legacy approach to creating services in the optical network.

However, pre-relational DBMS are legacy.