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See also: dubitò



(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)


dubito (plural dubiti)

  1. doubt

Related terms[edit]



  • IPA(key): /ˈdu.bi.to/
  • Rhymes: -ubito
  • Hyphenation: dù‧bi‧to

Etymology 1[edit]

Back-formation from dubitare (to doubt). Cognate with Piedmontese dùbit.


dubito m (plural dubiti) (archaic, literary)

  1. doubt
    Synonym: dubbio
Related terms[edit]

Etymology 2[edit]

See the etymology of the corresponding lemma form.



  1. first-person singular present indicative of dubitare



Somewhat uncertain, but likely as a frequentative of dubō (attested only as a gloss by Paulus/Festus), denominative of *dubos (in doubt, adj.), from Proto-Indo-European *dwi- (two-) + *bʰuH- (to be). See dubius for details. For the relation to "two" cf. Ancient Greek δισσός (dissós, twofold; doubtful), δοιάζω (doiázō, to be in two minds) and German Zweifel (doubt).



dubitō (present infinitive dubitāre, perfect active dubitāvī, supine dubitātum); first conjugation

  1. I waver (in opinion), am uncertain, doubt, question, am in doubt
  2. I waver (in coming to a decision), hesitate, delay
  3. I reflect upon, ponder, consider, deliberate


   Conjugation of dubitō (first conjugation)
indicative singular plural
first second third first second third
active present dubitō dubitās dubitat dubitāmus dubitātis dubitant
imperfect dubitābam dubitābās dubitābat dubitābāmus dubitābātis dubitābant
future dubitābō dubitābis dubitābit dubitābimus dubitābitis dubitābunt
perfect dubitāvī dubitāvistī, dubitāstī1 dubitāvit dubitāvimus dubitāvistis, dubitāstis1 dubitāvērunt, dubitāvēre
pluperfect dubitāveram dubitāverās dubitāverat dubitāverāmus dubitāverātis dubitāverant
future perfect dubitāverō dubitāveris dubitāverit dubitāverimus dubitāveritis dubitāverint
passive present dubitor dubitāris, dubitāre dubitātur dubitāmur dubitāminī dubitantur
imperfect dubitābar dubitābāris, dubitābāre dubitābātur dubitābāmur dubitābāminī dubitābantur
future dubitābor dubitāberis, dubitābere dubitābitur dubitābimur dubitābiminī dubitābuntur
perfect dubitātus + present active indicative of sum
pluperfect dubitātus + imperfect active indicative of sum
future perfect dubitātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present dubitem dubitēs dubitet dubitēmus dubitētis dubitent
imperfect dubitārem dubitārēs dubitāret dubitārēmus dubitārētis dubitārent
perfect dubitāverim dubitāverīs dubitāverit dubitāverīmus dubitāverītis dubitāverint
pluperfect dubitāvissem, dubitāssem1 dubitāvissēs, dubitāssēs1 dubitāvisset, dubitāsset1 dubitāvissēmus, dubitāssēmus1 dubitāvissētis, dubitāssētis1 dubitāvissent, dubitāssent1
passive present dubiter dubitēris, dubitēre dubitētur dubitēmur dubitēminī dubitentur
imperfect dubitārer dubitārēris, dubitārēre dubitārētur dubitārēmur dubitārēminī dubitārentur
perfect dubitātus + present active subjunctive of sum
pluperfect dubitātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present dubitā dubitāte
future dubitātō dubitātō dubitātōte dubitantō
passive present dubitāre dubitāminī
future dubitātor dubitātor dubitantor
non-finite forms active passive
present perfect future present perfect future
infinitives dubitāre dubitāvisse, dubitāsse1 dubitātūrum esse dubitārī dubitātum esse dubitātum īrī
participles dubitāns dubitātūrus dubitātus dubitandus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
dubitandī dubitandō dubitandum dubitandō dubitātum dubitātū

1At least one rare poetic syncopated perfect form is attested.

Derived terms[edit]



  • De Vaan, Michiel (2008), “dubius”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 180
  • Walde, Alois; Hofmann, Johann Baptist (1938), “dubius”, in Lateinisches etymologisches Wörterbuch (in German), volume 1, 3rd edition, Heidelberg: Carl Winter, page 375

Further reading[edit]

  • dubito in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • dubito in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • dubito in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette