Institutio Oratoria

My own teachers spelt seruus and ceruus with a uo, in order that the repetition of the vowel might not lead to the coalescence and confusion of the two sounds: to-day however we write these words with a double u on the principle which I have already stated: neither spelling however exactly expresses the pronunciation. It was not without reason that Claudius introduced the Aeolic digamma to represent this sound. [*](cp. I. iv. 8.) It is a distinct improvement that to-day we spell cui as I have written it: