Institutio Oratoria

I would suggest that the ripe scholar, who says

ave

His way is the right way. Who doubts it? But there is an easier and more frequented path close by. There is, however, nothing which annoys me more than their habit not merely of inferring the nominative from the oblique cases, but of actually altering it. For instance in ebur and robur, the forms regularly used both in writing and speech by the best authors, these gentlemen change their second syllable to o, because their genitives are roboris and eboris, and because sulpur and guttur keep the u in the genitive. So too femur and iecur give rise to similar controversy.

Their proceedings are just as arbitrary as if they were to substitute an o in the genitives of sulpur and guttur on the analogy of eboris and roboris. Thus Antonius Gnipho while admitting robur, ebur and even marmur to be correct, would have their plurals to be ebura, robura and marnura.

If they would only pay attention to the affinities existing between letters, they would realize that robur makes its genitive roboris in precisely the same way that limes, miles, iudex and uindex make their genitives militis, limitis, iudicis and uindicis, not to mention other words to which I have already referred.

Do not nouns which are similar in the nominative show, as I have already observed, quite different terminations in the oblique eases? Compare uirgo and Iuno, lusus and fusus, caspis and puppis and a thousand others. Again some nouns are not used in the plural, while others are not used in the singular, some are indeclinable, while others, like Jupiter, in the oblique cases entirely abandon the form of the nominative.

The same is true of verbs: for instance fero disappears in the perfect and subsequent tenses. Nor does it matter greatly whether such forms are nonexistent or too harsh to use. For what is the genitive singular of progenies or the genitive plural of spes? Or how will quire and ruere form a perfect passive or passive participles.

Why should I mention other words when it is even doubtful whether the genitive of senatus is senati or senatus? In view of what I have said, it seems to me that the remark, that it is one thing to speak Latin and another to speak grammar, was far from unhappy. So much for analogy, of which I have said more than enough.

Etymology inquires into the origin of words, and

For instance Marcus Caelius wishes to prove that he is homo frugi, not because he is abstemious (for he could not even pretend to be that), but because he is useful to many, that is fructuosus, from which frugalitas is derived. Consequently we find room for etymology when we are concerned with definitions.

Sometimes again this science attempts to distinguish between correct forms and barbarisms, as for instance when we are discussing whether we should call Sicily Triquetra or Triquedra, or say meridies or medidies, not to mention other words which depend on current usage.

Such a science demands profound erudition, whether we are dealing with the large number of words which are derived from the Greek, more especially those inflected according to the practice of the Aeolic dialect, the form of Greek which most nearly resembles Latin; or are using ancient historians as a basis for inquiry into the origin of names of men, places, nations and cities. For instance what is the origin of names such as Brutus, Publicola, or Pythicus? Why do we speak of Latium, Italia or Beneventum? What is the reason for employing such names as Capitolium, collis Quirinalis or Argietum? [*](For derivations see Index of Names at end.)

I now turn to minor points concerning which enthusiasts for etymology give themselves an

judge fit.

Again senatus may well be derived from old age (for the senators are called

the fathers

But are we also to admit the derivation of certain words from their opposites, and accept lucus a non lucendo, since a grove is dark with shade, ludus in the sense of school as being so called because it is quite the reverse of

play

beaten air

Let us go a little further and we shall find that stella is believed to be still luminis

a drop of light,