The story
Recorded in the Domesday Book (1086) in the Middle English forms Cetriz and Cateriz. Theories of its derivation include: * a borrowing from an unattested Old Welsh intermediary of Middle Welsh cadeir (“hill-fort”) and Medieval Latin cathedra, akin to Catterick * a derivation from Old English Ceatta (a personal name, as in St Ceatta) + rīc (kingdom, authority) * a derivation from Proto-Brythonic *koɨd (“wood, forest”) + *rrɨd (“ford”)
Etymology from Wiktionary, CC BY-SA 4.0.