found: Wikipedia, viewed 6-21-2019:(Publius Consentius was a 5th-century Latin grammarian and the author of two treatises, which are perhaps the fragments of a complete grammar: one entitled, Ars de Duabus Partibus Orationis, Nomine et Verbo, on the noun and the verb, much used during the Carolingian period; and the other, Ars de Barbarismis et Metaplasmis, on barbarisms and metaplasm. The latter refers to a third essay, de Structurarum Ratione, on the structure of periods, which, if ever published, is no longer extant)