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Clausula (rhetoric)

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Different authors had different preferences for clausulae. For example, the cretic + trochee and its variants make up 35% of the clausulae in Seneca's letters, but only 11% of the clausulae in Livy's history. Conversely, the double spondee (e.g. accēpērunt – – – –) makes up 36% of Livy's clausulae, but only 11% in Seneca's letters.

Types of clausulae

Every long sentence can be divided into sections called by the Greek word cola (singular colon), in Latin membra (singular membrum); the last few syllables of every colon tend to conform to certain favourite rhythmic patterns, which are known as clausulae. Shorter cola were known as commata /ˈkɒmətə/ (singular comma), or in Latin incīsa (singular incīsum), which also often display rhythmic endings.

The constant use of clausulae in Cicero's speeches was first thoroughly investigated by the Polish philologist Tadeusz Zieliński in a monumental work published in German in 1904, following an earlier dissertation by G. Wüst in 1881 and work by other scholars. Zieliński established that a Ciceronian clausula had two parts: a "base", generally a cretic | – u – | or a variation on it, and a "cadence", generally of a trochaic rhythm such as | – x |, | – u x |, or | – u – x |. (Here "–" indicates a long syllable, "u" a short syllable, and "x" a syllable which can be either long or short, while "|" demarcates the edges of these parts.)

The most common clausulae in Cicero are the following:

  • | – u – | – x | and variations (32.4% of Cicero's clausulae)
  • | – x – | – u x | (24.4%)
  • | – x – | – u – x | (30.1%)

Variations may include resolving one of the long syllables in the rhythm into two short ones, for example | – u uu | – x | (esse videātur) instead of | – u – | – x |. Another type of allowable variation is to substitute | – uu – | or | – u – – | for the base.

The above clausulae account for about 87% of Cicero's clausulae. Other clausulae are rarer. For example, the cadence may have five elements | – u – u – | or consist of two spondees | – – – – |. This last type (commoner in Livy than in Cicero) is compared by Zieliński to the blows of a hammer. Certain clausulae, such as the hexameter ending | – u u | – x |, were avoided (it occurs in Cicero, but only in about 0.6% of cases, and often for a reason such as mock-heroic description).

Zieliński noted that Cicero's preferences changed gradually over the years. For example, the rhythm | – – – | – u x | was more common in his earlier speeches, while from his consulate onwards he preferred the lighter | – u – | – u x |.

According to Zieliński, it is a principle of clausulae that the word-accent tends to follow the ictus of the feet, that is, there is usually an accent on the first syllable of the base and on the penultimate long syllable of the cadence, e.g. ílla tempéstās, egéstās audácia, incéndium civitátis, Cáesarī d(e) eius áctīs, etc. However, there are often exceptions to this rule, and Cicero was not so strict as later writers such as Augustine and Arnobius.

There is no doubt that the skilful use of clausulae was one of the techniques which an orator used to excite an audience. Cicero writes of one occasion when the use of a certain clausula (a dichoreus or double trochee – u – x) by the orator Carbo the Younger was so effective that the audience all gave a shout.

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