leg·a·cy 
(lĕgə-sē)
(lĕgə-sē)n. pl. leg·a·cies
1. Money or property given to another by will.
2. Something handed down from an ancestor or a predecessor or from the past: a legacy of religious freedom. See Synonyms at heritage.
3. An individual who is either an applicant to an educational institution or a matriculated student and is the child of an alumna or alumnus.
adj.
Retained under an obsolescent or discarded system, chiefly for purposes of reference: legacy files in the old email system.
[Middle English legacie, office of a deputy, from Old French, from Medieval Latin lēgātia, from Latin lēgātus, past participle of lēgāre, to depute, bequeath; see leg- in the Appendix of Indo-European roots.]