Family History and Genealogy Resources by Surname
Lacy Surname Origin
(Locality). Derived from a place in France by that name. Sire De Lacy came into England with William the Conqueror. The Lacys afterward settled in Ireland.
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
Lacy Surname Meaning and Family Facts
There is more to Lacy family history than the origin of your surname:
A Lacy Family History Thought:
'People will not look forward to posterity, who never look backward to their ancestors.' --Edmund Burk