This is the English Grammatical Pronunciation book. The pronunciation of English words derived from the Latin. On the pronunciation of English words derived from Latin. This paper may perhaps need a few words of introduction concerning the history of the pronunciation of Latin in England. The Latin taught by Pope Gregory's missionaries to their English converts at the beginning of the seventh century was a living language. Its pronunciation, in the mouths of educated people when they spoke carefully, was still practically what it had been in the first century, with the following important exceptions.