Etymology

Noun

1. money or property bequeathed to someone in a will
2. Something inherited from a predecessor; a heritage

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

3. The descendant of an alumnus

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

Adjective

1. of a computer system that has been in service for many years and that a business still relies upon, even though it is becoming expensive or difficult to maintain
2. left behind; old or no longer in active use

   They expect it to take years to process and import all the legacy data.