From Old Latin loucos, from Proto-Indo-European *lówkos (open space, clearing), which is derived from the root *lewk- (bright).
Cognates include Proto-Germanic *lauhaz (clearing), Sanskrit लोक (loka, free space, world).



lūcus m (genitive lūcī); second declension

  1. A grove sacred to a deity
  2. (poetic) a wood


Second-declension noun.

Case Singular Plural
Nominative lūcus lūcī
Genitive lūcī lūcōrum
Dative lūcō lūcīs
Accusative lūcum lūcōs
Ablative lūcō lūcīs
Vocative lūce lūcī

Derived termsEdit


  • Catalan: Lluc
  • Italian: luco
  • Galician: Lugo


  • lucus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • lucus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • lucus 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)
  • lucus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • Carl Meißner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • (ambiguous) in full daylight: luce (luci)
  • lucus in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly
  • Lewis & Short A Latin Dictionary