Survey of English Place-Names

Historical Forms

• Cardrunnock 13th Norfolk

• Cardrunnok(e) 1387 FF 1392,1482 Norfolk 1469 FF

• Kardrunoc 13th Norfolk

• Cardrunok 1363 Ipm

• Cardonock 1366 TestKarl

• Cardunnok 1395 CWxiv 1501

• Cardirnoke 1437 Cl

• Cardronok(e) 1485 Ipm 1503 Norfolk

• Cardronock 1589 ExchKR

• Cardronnok 1531 FF

• Cardornoc(k) 1707,1712 CWiv

• Cardurnock 1730 PR(HolmC)

• Drunnok 1377 GDR

Etymology

This is a British place-name, the first element being caer , 'fort, camp.' The second element is a derivative of a word corresponding to Welsh  dwrn , 'fist'; the Gaelic  equivalent is dorn , which can also mean 'round stone, pebble,' and has a derivative dornach , 'pebbly, pebbly place' (C PNSc 488). Cf. Dornock (Dumf), Dronnok 1325 REG, and Adam Johanson de Drunnok 1377GDR (in a northwest Cumberland context). Here the reference is doubtless to the cobble-stones that are such a feature of the structure of the coast fortlet recently excavated by F. G. Simpson and K. S. Hodgson (CW (NS) xlvii, 78–125).