Definition 2022





acuō (present infinitive acuere, perfect active acuī, supine acūtum); third conjugation

  1. I make pointed, sharpen, whet
  2. I exercise, practice, improve
  3. I spur, stimulate, arouse
  4. (grammar) I put an acute accent on


   Conjugation of acuo (third conjugation)
indicative singular plural
first second third first second third
active present acuō acuis acuit acuimus acuitis acuunt
imperfect acuēbam acuēbās acuēbat acuēbāmus acuēbātis acuēbant
future acuam acuēs acuet acuēmus acuētis acuent
perfect acuī acuistī acuit acuimus acuistis acuērunt, acuēre
pluperfect acueram acuerās acuerat acuerāmus acuerātis acuerant
future perfect acuerō acueris acuerit acuerimus acueritis acuerint
passive present acuor acueris, acuere acuitur acuimur acuiminī acuuntur
imperfect acuēbar acuēbāris, acuēbāre acuēbātur acuēbāmur acuēbāminī acuēbantur
future acuar acuēris, acuēre acuētur acuēmur acuēminī acuentur
perfect acūtus + present active indicative of sum
pluperfect acūtus + imperfect active indicative of sum
future perfect acūtus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present acuam acuās acuat acuāmus acuātis acuant
imperfect acuerem acuerēs acueret acuerēmus acuerētis acuerent
perfect acuerim acuerīs acuerit acuerīmus acuerītis acuerint
pluperfect acuissem acuissēs acuisset acuissēmus acuissētis acuissent
passive present acuar acuāris, acuāre acuātur acuāmur acuāminī acuantur
imperfect acuerer acuerēris, acuerēre acuerētur acuerēmur acuerēminī acuerentur
perfect acūtus + present active subjunctive of sum
pluperfect acūtus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present acue acuite
future acuitō acuitō acuitōte acuuntō
passive present acuere acuiminī
future acuitor acuitor acuuntor
non-finite forms active passive
present perfect future present perfect future
infinitives acuere acuisse acūtūrus esse acuī acūtus esse acūtum īrī
participles acuēns acūtūrus acūtus acuendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
acuere acuendī acuendō acuendum acūtum acūtū


  • acuo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • acuo in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • Félix Gaffiot (1934), “acuo”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.
  • Meissner, Carl; Auden, Henry William (1894) Latin Phrase-Book, London: Macmillan and Co.
    • (ambiguous) to sharpen the wits: ingenium acuere
    • (ambiguous) to cultivate one's powers of criticism: iudicium acuere
  • acuo in Ramminger, Johann (accessed 16 July 2016) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, pre-publication website, 2005-2016