The Brittonic languages (also Brythonic or British Celtic; Welsh: ieithoedd Brythonaidd/Prydeinig; Cornish: yethow brythonek/predennek; and Breton: yezhoù...

Southwestern Brittonic languages (Breton: Predeneg ar mervent, Cornish: Brythonek Dyghowbarthgorlewin) are the Brittonic Celtic languages spoken in what...

Western Brittonic languages (Welsh: Brythoneg Gorllewinol) comprise two dialects into which Common Brittonic split during the Early Middle Ages; its counterpart...

the later and modern Brittonic languages. It is a form of Insular Celtic, descended from Proto-Celtic, a theorized parent language that, by the first half...

The Gallo-Brittonic languages, also known as the P-Celtic languages, are a proposed subdivision of the Celtic languages containing the languages of Ancient...

Goidelic languages, while Welsh, Cornish and Breton are Brittonic. All of these are Insular Celtic languages, since Breton, the only living Celtic language spoken...

anciently spoken in Great Britain Brittonic languages, a branch of the Celtic languages descended from Common Brittonic Britons (Celtic people), or Celtic...

Pictish is an extinct Brittonic Celtic language spoken by the Picts, the people of eastern and northern Scotland from late antiquity to the Early Middle...

and Bretons (among others). They spoke Common Brittonic, the ancestor of the modern Brittonic languages. The earliest written evidence for the Britons...

Brittonic languages of Scotland survive to the modern day, though they have been reconstructed to a degree. The ancestral Common Brittonic language was...