The derivation of the personal name Dálach is not entirely obvious, but the most widely accepted theory is that it derives from the same root as dáil meaning "assembly;" the Irish Parliament is called 'Dáil Éireann.'
While the exact meaning of Dálach remains unclear, most scholars agree that it likely originates from the same root as the Irish term dáil, which denotes an assembly or legislative body, such as the Irish Parliament known as 'Dáil Éireann.'