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From Proto-Italic *walēō, from Proto-Indo-European *h₂wl̥h₁éh₁yeti, from *h₂welh₁- (to rule, be strong).





valeō (present infinitive valēre, perfect active valuī, supine valitum); second conjugation, no passive

  1. to be strong, to have strength, to have influence, to have power, to be powerful, to avail
    Antonyms: langueō, languēscō, ēlanguēscō, senēscō
  2. to be well, healthy, sound
    Antonyms: iaceō, aegrōtō, cubō
  3. to be worth, to be of worth, to be worthy
  4. to be effectual, be efficacious, be of effect, be good for
    Synonyms: prōficiō, prōsum
    Antonym: officiō
    • c. 84 BCE – 54 BCE, Catullus, Carmina 116.5–6:
      [] hunc videō mihi nunc frūstrā sūmptum esse labōrem,
          Gellī, nec nostrās hīc valuisse precēs.
      • 1894 translation by Leonard C. Smithers
        I see now that this effort was undertaken by me in vain, Gellius, and that our prayers to this end were of no avail.
  5. to be in force, in effect (said of laws)
  6. to mean, signify (used of words or statements that have a certain force or power in meaning)
  7. (Ecclesiastical Latin, Medieval Latin) to be able; to prevail
    Synonyms: polleo, possum, queō, praevaleō, vigeō
    Antonym: nequeō
  8. (New Latin, rare) to leave; to go away

Usage notes


The supine can be either valitūrum or valitum. Passive use is rarely attested.


   Conjugation of valeō (second conjugation, active only)
indicative singular plural
first second third first second third
active present valeō valēs valet valēmus valētis valent
imperfect valēbam valēbās valēbat valēbāmus valēbātis valēbant
future valēbō valēbis valēbit valēbimus valēbitis valēbunt
perfect valuī valuistī valuit valuimus valuistis valuērunt,
pluperfect valueram valuerās valuerat valuerāmus valuerātis valuerant
future perfect valuerō valueris valuerit valuerimus valueritis valuerint
subjunctive singular plural
first second third first second third
active present valeam valeās valeat valeāmus valeātis valeant
imperfect valērem valērēs valēret valērēmus valērētis valērent
perfect valuerim valuerīs valuerit valuerīmus valuerītis valuerint
pluperfect valuissem valuissēs valuisset valuissēmus valuissētis valuissent
imperative singular plural
first second third first second third
active present valē valēte
future valētō valētō valētōte valentō
non-finite forms active passive
present perfect future present perfect future
infinitives valēre valuisse valitūrum esse
participles valēns valitūrus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
valendī valendō valendum valendō valitum valitū

Derived terms





  • valeo”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • valeo”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • valeo in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
  • Carl Meißner, Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to be indisposed: leviter aegrotare, minus valere
    • to contribute much towards...; to affect considerably; to be instrumental in..: multum valere ad aliquid
    • to be highly favoured by; to be influential with..: multum valere gratia apud aliquem
    • to possess great authority; to be an influential person: auctoritate valere or florere
    • to have great influence with a person; to have considerable weight: multum auctoritate valere, posse apud aliquem
    • to have great influence with a person; to have considerable weight: alicuius auctoritas multum valet apud aliquem
    • to be talented, gifted: ingenio valere
    • to possess great ability: intellegentia or mente multum valere
    • to have a good memory: memoriā (multum) valere (opp. memoriā vacillare)
    • to be gifted, talented: ingenio valere
    • to be very eloquent: eloquentia valere
    • to have great weight as a speaker: multum dicendo valere, posse
    • to unable to find a suitable expression: verbo parum valere (Tusc. 3. 5. 11)
    • to have the same meaning: idem valere, significare, declarare
    • the word has a narrow meaning: vocabulum angustius valet
    • I bid you good-bye, take my leave: te valere iubeo
    • (ambiguous) good-bye; farewell: vale or cura ut valeas
    • to have great influence: opibus, gratia, auctoritate valere, florere
    • to have a powerful navy: rebus maritimis multum valere
    • (ambiguous) good-bye; farewell: vale or cura ut valeas