Standardised Welsh Place-names list
Notes
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.
The hyphen is used in order to aid pronunciation by showing that stress does not fall on the penultimate syllable. However, this name falls into the category of established exceptions, e.g. Caerdydd and Pontypridd.
