The Goidelic or Gaelic languages form one of the two groups of Insular Celtic languages, the other being the Brittonic languages. Goidelic languages historically formed a dialect continuum stretching from Ireland through the Isle of Man to Scotland.

Is goidelic Gaelic?

Goidelic languages, one of two groups of the modern Celtic languages; the group includes Irish, Manx, and Scottish Gaelic.

What is the closest language to Gaelic?

Among the modern languages, there is often a closer match between Welsh, Breton, and Cornish on the one hand, and Irish, Scottish Gaelic and Manx on the other. For a fuller list of comparisons, see the Swadesh list for Celtic.