Camulodunum *camulo|dunon 'fort of Camulos (the war God)',Colchester

Canonium *canon|ion 'reedy place' Kelvedon

Caesaromagus caesar|o|*magos 'Caesar's market' Chelmsford.

Othona etymology unknown. Bede gives Ythancaestir, Bradwell

Londinium etymology unknown.