Survey of English Place-Names

Historical Forms

• Sedberg(e), Sedberga, Sedbergh(e) 1086 DB a.1177 Furn 1193 P 1202–8 Ass 1214 Abbr 1230 FF 1660 Dep

• Sedbergh(e) in Lonesdale 1319 Cl 1321 YDix 1361 Ass1 1431 Pat

• Sedbaarghe 1535 VE

• Sedbarghe 1601 FF

• Sadberg(e), Sadbergh 13 YDi 1231 FF 1251 Ch 1428 DiocV

• Sadbergh in Lon(n)esdale 1297 Ebor 1330 Ch 1378 Baild

• Sadbery 1338 FF

• Sadbery in Lonesdale 1348 BM

• Satberg 1257 Ch

• Sad(d)ebergh 1424 Pat

• Sad(d)eberue 1428 FA

• Seddeberg Hy3 BM

• Sedebergh in Lonesdale 1399 YDi

• Sedber 1544 NCyWills 1626 PRDnt

• Sedbar 1629 PRThn

• Sebber 1489 Pat

• Sebbar 1577 Holinshed

Etymology

'Seat-shaped (that is, flat) hill', v. set-berg. The compound is found elsewhere in such p.ns. as Sedber 99, 103supra , Sedbury YN 289, Sadberge Du 171. The form with Sat - is due to confusion with ON  sǽtr which appears in English as set and sat . The forms with Sad -, Sed - are due to the assimilation of -t - to -d - before -b -.