Various, The Antiquarian Magazine & Bibliographer…
“ We must guard against the idea that such prefix was ever the “Roman name” itself, used in apposition to “ceaster.”To resume, then, we have seen that there is no ground for supposing “castrum” to have ever formed part of the “Roman names” of those cities whose modern names end in “Chester,” &c. From this it has followed that the terminal in question is the result and badge of the English invasion, representing the English word “ceaster,” the invaders’ term for a walled town, and not the equivalent of a mere castrum, though etymologically derived from it in the first instance. ”
