Legal Formulae

Roman legal Latin is formulaic because words themselves could define a procedural act. To in iūs vocāre was to summon someone before the magistrate; to reum facere was to make someone a defendant; a patron causam agēbat, while the accused causam dīcēbat. The English translation changes its verb at every step, but Latin repeatedly combines an ordinary verb with a legally specialized noun and case frame.

The expressions below belong to Roman institutions and are therefore (formal) and historically specific. They are useful for reading oratory, history, inscriptions, and juristic prose; they are not a ready-made vocabulary for a modern lawsuit. Later civil-law maxims such as pacta sunt servanda are important in their own period, but should not be presented as though Cicero’s contemporaries used every later formula in its modern technical sense.

Identify the procedural role first

Before translating, identify who is acting and at what stage. A magistrate administers or grants a procedural remedy, an accuser brings a charge, a defendant answers it, an advocate argues, and a judge gives judgment.

Case usage around accusation, conviction, acquittal, and penalty has genuine variation. Learn the common lexical frames rather than inventing one universal “legal case.” The fuller patterns belong with Verbs of Accusing and Condemning.

Summons and appearance

In iūs vocāre literally calls a person “into law,” that is, before the magistrate who can provide the legal procedure. Iūs is accusative after motion-oriented in; the summoned person is the accusative object of vocāre.

This is not the same as in iūdicium vocāre, which can describe calling someone into a trial or bringing a matter to adjudication more generally. Roman procedure also used vadimōnium prōmittere, “promise an appearance under recognizance.” The party did not “promise a court”; vadimōnium names the binding undertaking.

The phrase lēge agere is especially associated with the old lēgis āctiōnēs, procedures whose prescribed words and gestures mattered. In late Republican prose the system could already be discussed as old-fashioned; label it (archaic/legal) when referring specifically to those actions.

Accusing, defending, and pleading

Reum facere “make [someone] a defendant” is more institutionally precise than the broad verb accūsāre. The defendant is accusative and reum is its predicative complement; both refer to the same male person (ream for a woman).

The genitive plural repetundārum is the conventional name of the extortion charge, short for pecūniārum repetundārum. With ordinary accūsāre, a genitive commonly marks the charge.

The defendant causam dīcit: the phrase presents the defense as speech. An advocate causam agit: the phrase presents the case as business being conducted. The verbs do not merely offer stylistic synonyms.

The magistrate’s language: iūs, āctiō, and iūdex

Iūs dīcere means administer justice or declare the law in an official capacity; it gives the name iūrisdictiō. It does not mean merely “quote a law.” In formulary procedure a magistrate could āctiōnem dare “grant an action” and iūdicem dare “appoint a judge.” The claimant receives access to a recognized procedural route, not an abstract moral permission.

English “give a judge” sounds impossible because English packages appointment differently. The oddity is in the translation, not in the Latin frame.

Judgment, conviction, and acquittal

Sententiam dīcere means state one’s considered opinion. It is used of senators giving views in debate and of judicial decision-making. Context determines whether “opinion,” “vote,” or “judgment” is the best translation.

With damnāre, the offense is often genitive and the penalty ablative. With absolvere, the charge may be expressed by an ablative such as crīmine; genitive patterns also occur, especially with established names of charges. This unevenness is inherited usage, not a conceptual distinction that can always be derived from first principles.

The visible macron in composed teaching forms marks vowel quantity, not Roman legal spelling. In source documents and quotations, editorial conventions vary.

Reading a formulary sentence

Roman formulary procedure deliberately used conditional architecture. A traditional model names the claimant Aulus Agerius and defendant Numerius Negidius: if the alleged obligation is established, the judge is ordered to condemn; if not, to acquit. The following model joins the intentiō and condemnātiō patterns preserved by Gaius and leaves their formulary wording without pedagogical macrons:

The accusative-and-infinitive clause follows impersonal paret: Numerium Negidium ... dare oportere. The paired imperatives condemna and absolve direct the judge. Translating word by word before identifying that architecture makes the parties look like an unexplained string of names.

Classical formulae and later maxims

Expressions such as dē iūre “as a matter of law” and bona fidē “in good faith” have Classical material behind them, but modern lawyers may assign them narrower technical meanings. The neat opposition dē iūre / dē factō and maxims such as pacta sunt servanda belong especially to (later/formal) juridical tradition. Use them when reading that tradition, but do not silently backdate the modern system they evoke.

Common Mistakes

Translating “summon to court” with an English-shaped noun phrase

Making the defendant the subject of reum facere

Using facere for pleading a case

Making the offense a second accusative

Key Takeaways

Roman legal phraseology assigns each role its own frame: summon with in iūs vocāre, formally accuse with reum facere, defend with causam dīcere, advocate with causam agere, and administer justice with iūs dīcere. Charges, penalties, and acquittals do not share one automatic case pattern, so learn them with their governing verb. Formulae are compressed procedural maps; identify the parties, condition, infinitive clause, and judicial command before translating.