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From Proto-Italic *dormiō, from Proto-Indo-European *drem- (run, sleep).[1][2]

Cognates include Old Church Slavonic дрѣмати (drěmati, to drowse, doze), Russian дремать (dremat'), Ancient Greek δαρθάνω (darthánō, I sleep).


  • (Classical) IPA(key): /ˈdor.mi.oː/, [ˈdɔr.mi.oː]
  • (file)


dormiō (present infinitive dormīre, perfect active dormīvī, supine dormītum); fourth conjugation, no passive

  1. I sleep
    Dormituri te salutant.
    Those who are about to sleep, salute you.


   Conjugation of dormio (fourth conjugation, active only)
indicative singular plural
first second third first second third
active present dormiō dormīs dormit dormīmus dormītis dormiunt
imperfect dormiēbam dormiēbās dormiēbat dormiēbāmus dormiēbātis dormiēbant
future dormiam dormiēs dormiet dormiēmus dormiētis dormient
perfect dormīvī dormīvistī dormīvit dormīvimus dormīvistis dormīvērunt, dormīvēre
pluperfect dormīveram dormīverās dormīverat dormīverāmus dormīverātis dormīverant
future perfect dormīverō dormīveris dormīverit dormīverimus dormīveritis dormīverint
subjunctive singular plural
first second third first second third
active present dormiam dormiās dormiat dormiāmus dormiātis dormiant
imperfect dormīrem dormīrēs dormīret dormīrēmus dormīrētis dormīrent
perfect dormīverim dormīverīs dormīverit dormīverīmus dormīverītis dormīverint
pluperfect dormīvissem dormīvissēs dormīvisset dormīvissēmus dormīvissētis dormīvissent
imperative singular plural
first second third first second third
active present dormī dormīte
future dormītō dormītō dormītōte dormiuntō
non-finite forms active passive
present perfect future present perfect future
infinitives dormīre dormīvisse dormītūrus esse
participles dormiēns dormītūrus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
dormīre dormiendī dormiendō dormiendum dormītum dormītū

Related terms[edit]



  • dormio in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • dormio in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • dormio in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • I cannot sleep for anxiety: curae somnum mihi adimunt, dormire me non sinunt
    • to sleep soundly (from fatigue): arte, graviter dormire (ex lassitudine)
    • to sleep on into the morning: in lucem dormire
  1. ^ “dormire” in: Alberto Nocentini, Alessandro Parenti, “l'Etimologico — Vocabolario della lingua italiana”, Le Monnier, 2010, →ISBN
  2. ^ De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill