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...

or languages. Pictish is linked, likely as a sister language or a descendant branch. Evidence from early and modern Welsh shows that Common Brittonic was...

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

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...

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

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

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

Southwestern Brittonic language of the Celtic language group spoken in Brittany, part of modern-day France. It is the only Celtic language still widely...