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Alternative forms[edit]


From inter (between) +‎ legō (to select), or from inter- +‎ Proto-Italic *legō (to care).



intellegō (present infinitive intellegere, perfect active intellēxī, supine intellēctum); third conjugation

  1. I understand, comprehend, realize, come to know.
    Synonym: tongeō
    • 63 B.C.E., Cicero, Catiline Orations (Latin text and English translations here), 1.2
      O tempora, o mores! Senatus haec intellegit, consul videt; hic tamen vivit. Vivit?
      Shame on the age and on its principles! The senate is aware of these things; the consul sees them; and yet this man lives. Lives!
  2. I perceive, discern, see, observe, recognise; feel, notice.
    Synonyms: agnōscō, cognōscō, inveniō, sentiō, cōnsciō, sapiō, sciō, nōscō, scīscō, percipiō, discernō, tongeō, cernō, audiō
    Antonyms: ignōrō, nesciō


   Conjugation of intellegō (third conjugation)
indicative singular plural
first second third first second third
active present intellegō intellegis intellegit intellegimus intellegitis intellegunt
imperfect intellegēbam intellegēbās intellegēbat intellegēbāmus intellegēbātis intellegēbant
future intellegam intellegēs intelleget intellegēmus intellegētis intellegent
perfect intellēxī intellēxistī intellēxit intellēximus intellēxistis intellēxērunt,
pluperfect intellēxeram intellēxerās intellēxerat intellēxerāmus intellēxerātis intellēxerant
future perfect intellēxerō intellēxeris intellēxerit intellēxerimus intellēxeritis intellēxerint
passive present intellegor intellegeris,
intellegitur intellegimur intellegiminī intelleguntur
imperfect intellegēbar intellegēbāris,
intellegēbātur intellegēbāmur intellegēbāminī intellegēbantur
future intellegar intellegēris,
intellegētur intellegēmur intellegēminī intellegentur
perfect intellēctus + present active indicative of sum
pluperfect intellēctus + imperfect active indicative of sum
future perfect intellēctus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present intellegam intellegās intellegat intellegāmus intellegātis intellegant
imperfect intellegerem intellegerēs intellegeret intellegerēmus intellegerētis intellegerent
perfect intellēxerim intellēxerīs intellēxerit intellēxerīmus intellēxerītis intellēxerint
pluperfect intellēxissem intellēxissēs intellēxisset intellēxissēmus intellēxissētis intellēxissent
passive present intellegar intellegāris,
intellegātur intellegāmur intellegāminī intellegantur
imperfect intellegerer intellegerēris,
intellegerētur intellegerēmur intellegerēminī intellegerentur
perfect intellēctus + present active subjunctive of sum
pluperfect intellēctus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present intellege intellegite
future intellegitō intellegitō intellegitōte intelleguntō
passive present intellegere intellegiminī
future intellegitor intellegitor intelleguntor
non-finite forms active passive
present perfect future present perfect future
infinitives intellegere intellēxisse intellēctūrum esse intellegī intellēctum esse intellēctum īrī
participles intellegēns intellēctūrus intellēctus intellegendus,
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
intellegendī intellegendō intellegendum intellegendō intellēctum intellēctū

Derived terms[edit]

Related terms[edit]



  • intellego”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • intellego”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • intellego in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette
  • Carl Meißner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • not to understand a single word: verbum prorsus nullum intellegere
    • what do we understand by 'a wise man': quem intellegimus sapientem?
    • what do we mean by 'virtue': quae intellegitur virtus
    • that is self-evident, goes without saying: hoc facile intellegi potest
    • that is self-evident, goes without saying: hoc per se intellegitur
    • from this it appears, is apparent: ex quo intellegitur or intellegi potest, debet
  • von Wartburg, Walther (1928–2002), “ĭntĕllĕgĕre”, in Französisches Etymologisches Wörterbuch (in German), volume 40, page 739