/neeth, needh/, prep. Chiefly Literary.beneath.Also, 'neath.[1780-90; aph. var. of BENEATH]
* * *Welsh Castell-neddtown, Neath Port Talbot county borough, historic county of Glamorgan (Morgannwg), Wales. About 75 CE the Romans chose the site, on the River Neath (Nedd), for a fort, Nidum, to protect their road from Gloucester to Carmarthen at the lowest practicable crossing of the river. In the 12th century a castle was constructed there. The adjoining town was granted a charter by William FitzRobert, 2nd earl of Gloucester, but in 1231 the castle was destroyed by the Welsh prince Llywelyn Ap Iorwerth. The 12th-century Cistercian foundation, Neath Abbey, is also now a ruin.In 1584 a copper-smelting works was built in the town, using locally mined coal and Cornish ore brought cheaply by sea into the estuary. Other nonferrous metals (e.g., tin, lead, and silver) came to be smelted there, too, and during the 19th and 20th centuries adjacent Briton Ferry became a centre for steelmaking. Most of these industries have since declined. Engineering concerns and others that make fabricated steel products are still important, and a large petrochemical industry has grown since World War II. As a shopping and service centre, the town of Neath is overshadowed by Swansea, 7 miles (11 km) to the west, but it still serves local industrial and mining communities. Pop. (2001) 45,898.
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