The parish of Llanedeyrn rests on the banks of the river Rhymney and is visible nesting on a hill side above the A48(M), westbound on the approach into Cardiff.

In English, it is pronounced /lænˈɛdɪn/ as if the name were Lanedin,[1] with Welsh [ɬ] becoming [l], and the difficult, for non-Welsh-speakers, "Edeyrn" becoming an easier "Edin".

It was Llanetarn [ɬanˈeːtarn],[3] showing the typical south-eastern change of final-syllable [e] to [a] (also a feature of north-western Welsh, in Gwynedd and Anglesey (Ynys Môn)) and the provection of [d] to [t] at the beginning of a penultimate syllable.

[4] John Hobson Mathews (Mab Cernyw), editor of the "Cardiff Records, Being Materials For A History Of The County Borough From The Earliest Times" mentions Llanedern in Volume 5 (1905), in the "Schedule of Place Names".

St Edeyrn was reputed to have travelled widely, and as a result there are churches in North and South Wales dedicated to his memory.

The council provided prefabricated and terraced houses, and many two-, three- and multi-storey blocks of flats were constructed.

In 1974 the Maelfa shopping centre was built[6] and a part-time police station was opened, followed in 1975 by the Retreat public house next door.

It is a word used in nineteenth-century literary Welsh meaning "shop, market-place", first seen in 1803 in the Welsh-English Dictionary of lexicographer William Owen-Pughe and apparently coined by him.

Llanedeyrn is also home to St Teilos Church in Wales High School, which provides secondary education for students in the area.

Services include welfare and benefits advice, assistance with the housing waiting list, and support for homeless individuals.