Leacy

Leacy is a surname of Irish origin, derived from the Gaelic 'Ó Maolaois', meaning 'descendant of a devotee of (Saint) Maolaois'. The personal name Maolaois itself means 'devotee of (Saint) Aois', with Aois being a less common saint's name, possibly related to 'aois' meaning 'age' or 'life'. Over time, the surname was anglicized in various ways, including Leacy, Lacey, and Lacy.

While primarily a surname, Leacy has occasionally been adopted as a given name, particularly in English-speaking countries. Its use as a first name is relatively rare and often reflects a family surname tradition or a desire for a unique-sounding name. The 'healer' meaning is often attributed through folk etymology or association with similar-sounding names or words, rather than a direct etymological link to the Gaelic root.