Mr. Polwhele himself has proposed a third explanation, which, however ingenious, I think equally unsatisfactory. He suggests, that Truro may be a town of Roman origin; and that the name is a corruption of _Trevorou_, the _town-on-the-ways_. But if it were so, we should not be wholly without any evidence of the fact. Proof would be found in some obscure tradition, some historical record, or some local circumstance; and the name itself, upon which alone this opinion is grounded, would be more completely consistent with it. When the Romans founded a town, it was not their custom to give it a name exhibiting no trace of their own language; but _Trúro_ is unquestionably Cornish; and besides that, as persons skilled in such matters would easily see, it is no very natural corruption of _Trevórou_. Polwh. Hist. of Cornwall, vol. I, p. 189; vol. II, p. 215. Yet that it is a corruption, is certain. In the charter granted by Reginald Fitzroy, in the reign of Henry II. the name of the town is written _Trivereu_. It is of this word, therefore, that _Truro_ is a corruption; and if we can determine its signification, we shall ascertain the etymon of _Truro_. Now nothing can be better known, than that _Rivereu_, or _Riverô_, in the ancient language of this county, had the same meaning as the kindred word _rivers_, in English: and with regard to the initial _T_, it can be scarcely necessary to say, that it stands for _Tre_, or its archaic form _Te_, a _town_. The word, therefore, in the primitive and proper mode of writing it, is _Trerivero_; and consequently, the name as it appears in Reginald’s charter, is itself an example of that liability to change, by which the same word was subsequently converted to _Truro_. But the alteration in that case was so slight, that the composition of the word was scarcely obscured; and so natural, that its corruption could not have been prevented. For it was hardly possible in common speech to avoid the elision, which turns _Trerívero_ into _Trívero_; as this again has been contracted to _Trúro_. The word _Truro_, then, signifies the _Town-on-the-rivers_, or as we should now say, _Riverton_. And this interpretation is illustrated and confirmed by the local peculiarities: for the town is intersected by two rivers, which originally were its boundaries――the Cenion on the south, and the Allan on the east.