The natural assumption is that the village is so-named because two becks meet there. However, the name is pronounced with the accent on the middle syllable. In the 12th century there was an h in the middle, the earliest known version, from 1130, being Bechermet, so the English Place-Name Society suggests that the name really means "hermit's stream".
The two parishes
Until May 2011 Beckermet was split between two parishes: Beckermet St Bridget to the south east, and Beckermet St John to the north west. Arguably, a third parish should be included, as the parish of Haile extended to within a few yards of St John's parish church, however this extension contains only fields. St Bridget included most of the small village of Calder Bridge, and the hamlet of High Sella field, along with about half of the nuclear plant. A large portion of the population of St John lived in the former mining community of Thornhill, near Egremont. In May 2011 the parish boundaries were changed, and the parishes of St. Johns and St Bridgets were merged to form the new parish of Beckermet, which include Beckermet, Thornhill and the northern part of the Sellafied nuclear site. On 22 June 2012 Beckermet Parish Council was renamed Beckermet with Thornhill Parish Council. This was enacted to reflect the closer administrative ties between Beckermet and Thornhill.
Governance
An electoral ward in the same name exists. This ward stretches beyond the confines of Beckermet parish with a total population of 3,024.
The current church of St. Bridget, built in 1842, is at Calder Bridge, but the old "Low Church" about 1 km SW of the village, a plain building of Norman origin with 13th century modifications, is still used occasionally. In the churchyard are the remains of two ancient crosses, one of which has a runic inscription, of which several very contradictory translations have been made. The church of St. John, in the centre of the village, was rebuilt in 1878–79, but it too has fragments of ancient crosses, and many carved stone medieval coffin lids. The ruined monastery of Calder Abbey is also within St. Bridget's civil parish.
Castle sites
St. John's parish also contains traces of two medieval castles, probably both residences of the le Fleming family, who were granted land in the area shortly after the Norman conquest of the area. The earlier, at Wodobank near Thornhill, had a defensive motte and possibly an adjoining bailey enclosure. A railway line, itself now abandoned, obliterated most of the remains. The outline of the later fortification, known as Caernarvon Castle, can still be traced in the fields north of the village ; it was abandoned about 1250 when the family moved to Coniston. Although Caernarvon was identified as a castle site by a later member of the family, 17th century historian Sir Daniel Fleming, some experts believe it was never inhabited, and that its alternative name "Coneygarth Cop" may indicate that it was a medieval rabbit warren.
Landmarks
, which lies by the River Calder just north of Calder Bridge, is a picturesque ruin adjoining Calder Abbey House, a largely 19th-century house which incorporates some remains of the abbey. The village also houses an 18th-century coach house, this is now the White Mare public house. To the south of Calder Bridge, also close to the river, is Sella Park, a 17th-century house incorporating a 14th-century pele tower, restored in the 19th century and now a country house hotel.