What is "trethevy"

Trethevy is a hamlet in north Cornwall, England, United Kingdom.

It is midway between the villages of Tintagel and Boscastle in the civil parish of Tintagel. Trethevy has a number of historic buildings and is an early Christian site. The hamlet is divided by the B3263 road which continues through Trevalga to Boscastle: the main settlement is south-east of the road and to the north-west is the Rocky Valley.

There are two other Trethevys in Cornwall. Trethevy in the parish of St Cleer (Trethewy, 1284) and Trethevy in South Petherwin parish (Trethewy, 1332). There are a further two places spelled Trethevey: Trethevey in St Mabyn parish (Tiwardeui, 1201) and Trethevey in Luxulyan (Trethewy, 1302). Additionally there are four places spelled Trethewey: Trethewey in Germoe (Trethewy, 1327), Trethewey in St Ervan (Trethewy, 1286), Trethewey in St Levan (Trethewy, 1320) and Trethewey in St Martin (Trethewy, 1371). All of these come from the Cornish Tredhewy meaning Dewi's Farm, apart from the one in St Mabyn which comes from Ty war Duwy meaning house on the river Dewey.