Lysaght Family History
Lysaght Surname Meaning
Irish: shortened Anglicized form of Gaelic Mac Giolla Iasachta ‘son of the foreign lad or servant’.
It originates from the genitive of iasacht, which means ‘borrowing’.
This term is used as an adjective meaning ‘foreign’.
Source: Dictionary of American Family Names 2nd edition, 2022
