Comparison of Gerund and Gerundive (Ablative)

Summary of Comparison

The gerundive, or perfect passive participle, is a verbal adjective, which conveys a sense of necessity, obligation or propriety

  • The gerundive may appear in any case, according to its corresponding noun

The gerund is a type of gerundive, appearing only the oblique (non-nominative) cases, used substantial as a verbal noun

  • This use of the gerundive, always neuter singular, is comparable to the English gerund, which ends in -ing

For a more basic discussion of gerunds and gerundives, see the articles on ‘Gerunds’ and ‘Gerundives’ elsewhere in this blog


Gerunds and Gerundives with the Ablative

The ablative of gerunds and gerundives has three purposes: (1) as an ablative of manner, means, or cause, (2) after comparatives, (3) after certain prepositions

In each use, the gerund and gerundive have similar frequencies

These ablatives may take a direct object, but they do so rarely


Ablative of Manner, Means and Cause

  • He persuades by large promises: multa pollicendō persuādet. (gerund)
  • She is equal to any man in speaking Latin: Latīnē loquendō cuivīs pār est. (gerund)
  • He revealed by reading these very things: hīs ipsīs legendīs ostendābat. (gerundive)

With Comparatives

  • No duty is more important than repaying favors: nūllum officium referendā grātiā magis necessārium est. (gerundive)
  • He enjoys reading more than writing: legendō magis quam scrībiendō fruitur. (legendō is abl. with fruor, describing manner) (gerund)

After Prepositions

  • These prepositions are ab, dē, ex, in and prō 
  • I want to be employed in conducting affairs: in rē gerendā versārī volō (gerundive)
  • She spoke of mourning: lugendō orābat. (gerund)


The Essential AG: §507


Famous Phrase: castigat rigendō mōrēs. (one corrects custom through laughter)

[neo-Latin phrase coined by the French poet Jean de Santeul]




Ablative of Means and Instrument (Basic)

Ablative of Manner, Means and Instrument (p 2/3)


Summary of Use

Allen and Greenough identify three major categories of case usage with the ablative: (1) the ablative proper, (2) the instrumental ablative and (3) the locative ablative

  • The ablative of means, manner and instrument are a collected heading under the (2) instrumental ablative

These uses of the ablative are part of what was once the instrumental case, so “no sharp line can be drawn between them, and indeed the Romans themselves can hardly have thought of any distinction” (AG 408)

The ablative of manner is often distinguished by the use of cum as an initiating preposition


Ablative of Means and Instrument

These will typically appear without a preposition, and qualify an action, not an object

There is no fine line between means and instrument

  • They fought with fists, heels, nails and even teeth: pūgnīs calcibus, unguibus, morsū dēnique certābant.
  • I have resisted with virtue: virtūte passus sum. 
  • I have resisted with force: vī passus sum.
  • I have resisted with the sword: ense passus sum.
  • There is no nation he could not conquer with his authority: nullā gēns est, quam nōn auctoritāte convincat. 

With Verbs and Participles of Filling

Verbs such as pleō, compleō, expleō, referō, and differō take the ablative of means

  • God has filled the world with all good things: Deus donīs omnibus explēvit mundum.
  • Her life was filled and crowded with delights: vīta sua plēna et cōnferta voluptātibus fuit.
  • The Appian forum was crowded with sailors: Forum Appī differtum nautīs erat.

In poetry, may take the genitive instead of the ablative

  • I fill up the banquet with my neighbors: convīvum vīncōrum compleō.


Famous Phrase: manibus dāte lilia plēnīs (give lilies with full hands)

-Virgil, Aeneid, 6.883

echoed in Dante, Purgatory, 30.21 and Walt Whitman, Leaves of Grass, 3.6