Goidelic

Goidelic, also called the Gaelic languages, forms one of the two branches of Insular Celtic, alongside Brittonic, and historically made up a single dialect continuum stretching from Ireland through the Isle of Man to Scotland. Three modern Goidelic languages survive: Irish (Gaeilge), Scottish Gaelic (Gaidhlig) and Manx (Gaelg), the last of which died out as a first language in the twentieth century but has since been revived to some degree. The branch's earlier stages are named Primitive Irish, Old Irish and Middle Irish, marking the historical stages through which the modern languages diverged from a common ancestor.