C?sar, in his Commentaries does not speak of Rouen; Pomponius Mela, does not mention it in his Geography; Ptolemy is the first author who has noticed it. This observation alone will shew the absurdity of the numerous etymologies assigned to its name of Rothomagus, of which we have made Rouen. The least unlikely are those which have been taken from the primitive language of the country; but, even then we can only form conjectures more or less vague, as, in deriving Rothomagus from two celtic words, some have considered that this name signifies a great town; others, a town on the bank of a river; while others again a town where duties were paid.展开