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Surname Etymology and Meaning of LACY

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Name meanings and etymologies are often disputed. The information here is compiled from freely available sources, and no claims whatsoever are made for accuracy, either historical or etymological.

(origin: Local) 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 (1857).

English and Irish (of Norman origin): habitational name from Lassy in Calvados, named from a Gaulish personal name Lascius (of uncertain meaning) + the locative suffix -acum. The surname is widespread in Britain and Ireland, but most common in Nottinghamshire. In Ireland the family is associated particularly with County Limerick.

Source: Dictionary of American Family Names (2003)