Insular Celtic languages are the six Celtic languages that originated in the British Isles.[1] All surviving Celtic languages are from the Insular Celtic group; the Continental Celtic languages (the other group) are now extinct. The six Insular Celtic languages of modern times can be divided into 2 groups:
The Goidelic languages: Irish, Manx, and Scottish Gaelic[2] They are also called "Q-Celtic" because of the use of a Q sound (spelled with a C or a K).[2]
The Brittonic languages: Breton, Cornish, and Welsh[2] (another language, Cumbric, is extinct). Brittonic Celtic is also called "P-Celtic" because of the use of the letter P.[2]