Cilsân

The first element of the name Cilsân is Welsh cil meaning 'nook'. The second is less clear. It may be an unrecorded personal name *Sân or alternatively sân, the local form of saen, borrowed from the English seine, a type of fishing net.^[1]

The spelling Cilsân is the preferred standard form in both English and Welsh by the Welsh Language Commissioner.^[2] Other spellings include the anglicised Kilsane and Cilsane, the latter of which is still used, including on postal addresses held by the Royal Mail, and by a local lodge operator.^[3] These contain a final silent e that indicates that the preceding vowel is long.

Pont Cilsân ('Cilsân bridge') is located on the River Tywi a short distance to the south-west, at the site of a former ferry. It is a Grade II-listed high-arched stone bridge of three spans that carries the road from Golden Grove to Llangathen. It was probably built c.1865.^[4]