Deponents with Special Case Government

Most deponents govern the same kinds of complements as active verbs: sequor mīlitēs “I follow the soldiers” and hortor mīlitēs “I encourage the soldiers” take accusative objects. A small, important group instead selects another case. The famous cluster ūtor, fruor, fungor, potior, vescor commonly governs the ablative, while other deponents may select the genitive or alternate between cases.

English is dangerous here because “use,” “enjoy,” “perform,” “possess,” and “eat” all appear transitive and therefore tempt a Latin accusative. Latin valency belongs to the individual lexeme. Deponent morphology does not cause the special case, and translating first will not predict it. The corresponding case-centered account is Ablative with Special Deponent Verbs.

The central ablative group

These patterns are standard in (neutral Classical prose) and should be learned as part of each dictionary entry.

The ablative here continues instrumental, associative, or separative ways of construing the relationship: one makes use with a tool, enjoys the benefit of/from something, or occupies oneself with a duty. That history can make the pattern memorable, but it is not a fully productive rule. The honest difficulty is lexical: you must memorize which verbs select this case.

Archaic, archaizing, or later authors occasionally use an accusative with members of this group, especially fungor, potior, and vescor. Treat that as an author-specific reading pattern, not as the neutral productive model for composition.

The ablatives stilō novō and hāc clāvī are semantic complements of ūtor, not passive agents. Ūtitur means “uses,” and imperative ūtere means “use.”

Fruor, fungor, and vescor

Fruor presents its complement as something whose benefit or enjoyment the subject experiences. Fungor commonly combines with words for an office, duty, or service. Vescor selects food as an ablative complement and is defective in important parts of its perfect system; do not manufacture unattested forms merely because other deponents have them.

Coordinated complements remain ablative: pane et olīvīs. English supplies no overt preposition, but adding a Latin accusative would replace the verb’s established government with an English pattern.

Perfect-system forms retain the same government. Agreement belongs to the participle, while the complement stays ablative:

In the first example fūncta is feminine nominative singular, agreeing with Līvia; summō honōre is ablative. In the second, ūsī is masculine plural and paucīs commeātibus is ablative plural. Do not make the governed noun agree with the participle: these are independent morphological relationships.

Potior: ablative and genitive

Potior most often takes an ablative for the entity gained or mastered: urbe potīrī “gain possession of the city,” rēgnō potīrī “seize royal power.” A genitive is also Classical, especially with totalizing expressions such as tōtīus regiōnis “of the whole region.” This is genuine variation, not an error to regularize away.

The ablative is the safest productive model for ordinary composition. The genitive is especially important for reading (formal and literary) prose and should be recognized rather than “corrected” to an accusative.

Other deponents and related semi-deponents with non-accusative complements

Several additional lexemes deserve separate storage. The first row contains the semi-deponents fīdō and cōnfīdō; the remaining verbs are deponent.

Some of these alternatives correlate with meaning, idiom, or authorial preference rather than a simple universal rule. At B1, use a securely attested model phrase and consult a full dictionary when composing an unfamiliar sense.

A reliable parsing and production method

When reading, first parse the verb’s visible person, number, tense, mood, and passive-form morphology. Next identify the lexeme as deponent or semi-deponent. Then retrieve its valency: ūtitur licenses an ablative, whereas sequitur licenses an accusative. Finally, translate the whole relation idiomatically.

For composition, reverse the order only after choosing the Latin lexeme. If “use” leads you to ūtor, immediately assign the thing used to the ablative before arranging word order. Do not decide that an English direct object must become a Latin accusative.

Compare:

The noun’s real-world role is similar, but the Latin verbs construe it differently. Case marks the relationship selected by the predicate, not a universal category called “the thing affected.”

Why this is not passive syntax

Because ūtitur ends in -tur, learners sometimes analyze gladiō as an ablative agent: “is used by a sword.” That fails lexically and semantically. The nominative subject is the user, and the bare ablative is the instrument or resource used.

An ordinary English passive therefore cannot be created by merely rearranging the nouns. For “the sword is used by Marcus,” Classical prose can select an ordinary active/passive verb such as adhibeō: gladius ā Mārcō adhibētur. Choosing a different lexeme is often better than forcing an unavailable finite passive of ūtor.

Common Mistakes

1. Copying an English direct object into the accusative

2. Treating the ablative as a passive agent

3. Changing the governed case in the perfect

4. Assuming every deponent takes the ablative

5. Forcing potior into one invariant construction

Key Takeaways

Case government is lexical. Memorize ūtor, fruor, fungor, potior, and vescor with ablative model phrases, while recognizing the Classical genitive alternative with potior. Preserve the governed case in perfect and participial constructions. Above all, do not let a passive-looking ending or an English direct object choose the Latin case for you.