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From demonstrar +‎ -o.



demonstro (plural demonstri)

  1. demonstration (action of showing something)



dē- (concerning) +‎ mōnstrō (I show)



dēmōnstrō (present infinitive dēmōnstrāre, perfect active dēmōnstrāvī, supine dēmōnstrātum); first conjugation

  1. I show, demonstrate, prove
    • 426 CE, Aurelius Augustinus Hipponensis, City of God 12.1
      Sicut ergo, cum uitium oculorum dicitur caecitas, id ostenditur, quod ad naturam oculorum pertinet uisus; et cum uitium aurium dicitur surditas, ad earum naturam pertinere demonstratur auditus: ita, cum uitium creaturae angelicae dicitur, quo non adhaeret Deo, hinc apertissime declaratur, eius naturae ut Deo adhaereat conuenire.
      As, then, when we say that blindness is a defect of the eyes, we prove that sight belongs to the nature of the eyes; and when we say that deafness is a defect of the ears, hearing is thereby proved to belong to their nature;—so, when we say that it is a fault of the angelic creature that it does not cleave to God, we hereby most plainly declare that it pertained to its nature to cleave to God.
  2. I point out
  3. I draw attention to


   Conjugation of demonstro (first conjugation)
indicative singular plural
first second third first second third
active present dēmōnstrō dēmōnstrās dēmōnstrat dēmōnstrāmus dēmōnstrātis dēmōnstrant
imperfect dēmōnstrābam dēmōnstrābās dēmōnstrābat dēmōnstrābāmus dēmōnstrābātis dēmōnstrābant
future dēmōnstrābō dēmōnstrābis dēmōnstrābit dēmōnstrābimus dēmōnstrābitis dēmōnstrābunt
perfect dēmōnstrāvī dēmōnstrāvistī, dēmōnstrāsti2 dēmōnstrāvit dēmōnstrāvimus dēmōnstrāvistis, dēmōnstrāstis2 dēmōnstrāvērunt, dēmōnstrāvēre
pluperfect dēmōnstrāveram dēmōnstrāverās dēmōnstrāverat dēmōnstrāverāmus dēmōnstrāverātis dēmōnstrāverant
future perfect dēmōnstrāverō dēmōnstrāveris dēmōnstrāverit dēmōnstrāverimus dēmōnstrāveritis dēmōnstrāverint
passive present dēmōnstror dēmōnstrāris, dēmōnstrāre dēmōnstrātur dēmōnstrāmur dēmōnstrāminī dēmōnstrantur
imperfect dēmōnstrābar dēmōnstrābāris, dēmōnstrābāre dēmōnstrābātur dēmōnstrābāmur dēmōnstrābāminī dēmōnstrābantur
future dēmōnstrābor dēmōnstrāberis, dēmōnstrābere dēmōnstrābitur dēmōnstrābimur dēmōnstrābiminī dēmōnstrābuntur
perfect dēmōnstrātus + present active indicative of sum
pluperfect dēmōnstrātus + imperfect active indicative of sum
future perfect dēmōnstrātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present dēmōnstrem dēmōnstrēs dēmōnstret dēmōnstrēmus dēmōnstrētis dēmōnstrent
imperfect dēmōnstrārem dēmōnstrārēs dēmōnstrāret dēmōnstrārēmus dēmōnstrārētis dēmōnstrārent
perfect dēmōnstrāverim dēmōnstrāverīs dēmōnstrāverit dēmōnstrāverīmus dēmōnstrāverītis dēmōnstrāverint
pluperfect dēmōnstrāvissem, dēmōnstrāssem2 dēmōnstrāvissēs, dēmōnstrāsses2 dēmōnstrāvisset, dēmōnstrāsset2 dēmōnstrāvissēmus, dēmōnstrāssemus2 dēmōnstrāvissētis, dēmōnstrāssetis2 dēmōnstrāvissent, dēmōnstrāssent2
passive present dēmōnstrer dēmōnstrēris, dēmōnstrēre dēmōnstrētur dēmōnstrēmur dēmōnstrēminī dēmōnstrentur
imperfect dēmōnstrārer dēmōnstrārēris, dēmōnstrārēre dēmōnstrārētur dēmōnstrārēmur dēmōnstrārēminī dēmōnstrārentur
perfect dēmōnstrātus + present active subjunctive of sum
pluperfect dēmōnstrātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present dēmōnstrā dēmōnstrāte
future dēmōnstrātō dēmōnstrātō dēmōnstrātōte dēmōnstrantō
passive present dēmōnstrāre dēmōnstrāminī
future dēmōnstrātor dēmōnstrātor dēmōnstrantor
non-finite forms active passive
present perfect future present perfect future
infinitives dēmōnstrāre dēmōnstrāvisse, dēmōnstrāsse2 dēmōnstrātūrus esse dēmōnstrārī, dēmōnstrārier1 dēmōnstrātus esse dēmōnstrātum īrī
participles dēmōnstrāns dēmōnstrātūrus dēmōnstrātus dēmōnstrandus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
dēmōnstrāre dēmōnstrandī dēmōnstrandō dēmōnstrandum dēmōnstrātum dēmōnstrātū

1The present passive infinitive in -ier is a rare poetic form which is attested for this verb.
2At least one rare poetic syncopated perfect form is attested.

Related terms[edit]



  • demonstro in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • demonstro in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • demonstro in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français [Illustrated Latin-French Dictionary], Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to bring forward a proof of the immortality of the soul: argumentum afferre, quo animos immortales esse demonstratur




  1. first-person singular present indicative of demonstrar