Early-attested site in the Parish of Waterhead
- Bordoswald, Borddosewald c.1200 Weth
- Bordosewald c.1214 ib
- Burthoswald c.1245 Laner
- Burdeoswald in Erthington 1295 Ipm
- Borthosewold 1363 GDR
- Lambordoswolde 1589 ExchKR
- Brudessolle 1589 ExchKR
- High, Lowe Burdosell 1603 Gilsland
- Burduzall 1669 PR(Laner)
- Burdushold 1686 ib
As suggested by Sir Ifor Williams, this is probably the Welsh bwrdd Oswallt , 'Oswald's table.' Cf. Bwrdd Arthur , 'Arthur's table,' which occurs as a Welsh place-name.
The Romano-British name of Birdoswald was Camboglanna (v. Appendix).