Wikipedia
Anglo-Cornish (also known as Cornish English, Cornu-English, or Cornish dialect) is a dialect of English spoken in Cornwall by Cornish people. Dialectal English spoken in Cornwall is to some extent influenced by Cornish grammar, and often includes words derived from the Cornish language. The Cornish language is a Celtic language of the Brythonic branch, as are the Welsh and Breton languages. In addition to the distinctive words and grammar, there are a variety of accents found within Cornwall from the north coast to that of the south coast and from east to west Cornwall. The speech of the various parishes being to some extent different from the others was described by John T. Tregellas and Thomas Q. Couch towards the end of the 19th century. Tregellas wrote of the differences as he understood them and Couch suggested the parliamentary constituency boundary between the East and West constituencies, from Crantock to Veryan, as roughly the border between eastern and western dialects.