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From Proto-Italic *kaikos (blind, eyeless), from Proto-Indo-European *káykos (one-eyed). Cognates include Gothic 𐌷𐌰𐌹𐌷𐍃 (haihs), Old Irish cáech (one-eyed), caoch (blind).


  • (Classical) IPA(key): /ˈkae̯.kus/, [ˈkae̯.kʊs]
  • (Ecclesiastical) IPA(key): /ˈt͡ʃe.kus/, [ˈt͡ʃɛː.kus]
  • (file)


caecus (feminine caeca, neuter caecum); first/second-declension adjective

  1. blind
  2. invisible


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative caecus caeca caecum caecī caecae caeca
Genitive caecī caecae caecī caecōrum caecārum caecōrum
Dative caecō caecō caecīs
Accusative caecum caecam caecum caecōs caecās caeca
Ablative caecō caecā caecō caecīs
Vocative caece caeca caecum caecī caecae caeca

Related terms[edit]


  • Asturian: ciegu
  • Catalan: cec
  • English: caecum
  • French: cæcum
  • Galician: cego
  • Italian: cieco, cecato
  • Neapolitan: cecato


  • caecus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • caecus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • caecus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • Fortune makes men shortsighted, infatuates them: fortuna caecos homines efficit, animos occaecat
    • (ambiguous) to have no principles: caeco impetu ferri
  • caecus in William Smith, editor (1848) A Dictionary of Greek Biography and Mythology, London: John Murray