Standard Welsh Place-names
Notes
The hyphen is used when the Welsh definite article (y/yr) occurs before a final monosyllablic element; hyphens are used before and after the definite article in order to indicate the individual elements and aid pronunciation.
If the difference between the ‘Welsh form’ and the 'English form’ consists of only one or two letters, the use of a single form is recommended, with preference being given to the ‘Welsh form’. This accords with the recommendations of the Ordnance Survey and the Highway Authorities.
