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From Proto-Italic *plēnos, from an e-grade variant of Proto-Indo-European *pl̥h₁nós (full) (the zero-grade form would have given *plānus). Cognates include Ancient Greek πλήρης (plḗrēs) and πλέως (pléōs), Sanskrit पूर्ण (pūrṇa), Old English full (English full), Persian ⁧پر(por), Old Irish lán, Old Church Slavonic пльнъ (plĭnŭ), Lithuanian pilnas.



plēnus (feminine plēna, neuter plēnum, comparative plēnior, superlative plēnissimus, adverb plēnē); first/second-declension adjective

  1. full, filled, complete
    Synonyms: refertus, implētus, explētus, complētus, frequens
    Antonyms: vacuus, vanus, inānis
  2. (with genitive, or ablative in later Latin) full (of), plump
  3. (poetic) satisfied


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative plēnus plēna plēnum plēnī plēnae plēna
Genitive plēnī plēnae plēnī plēnōrum plēnārum plēnōrum
Dative plēnō plēnō plēnīs
Accusative plēnum plēnam plēnum plēnōs plēnās plēna
Ablative plēnō plēnā plēnō plēnīs
Vocative plēne plēna plēnum plēnī plēnae plēna

Related terms[edit]



  • plenus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • plenus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • plenus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
  • plenus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette
  • Carl Meißner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • a very charming book: liber plenus delectationis
    • a most courteous letter: litterae officii or humanitatis plenae