Ó hÁdhlaigh
Ó hÁDHLAIGH—I—Addley, Addly; 'descendant of A----------' a rare surname in parts of Mayo and Galway. The Annals of Ulster at the year 947 record the death of 'Anmere Ua Adlai,' coarb of St. Ciaran of Clonmacnoise.
Alphabetical Index to Irish Surnames