This Proto-Indo-European entry contains reconstructed terms and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.



*lókus m[1][2][3][4][5][6][7]

  1. pond, pool


Athematic, amphikinetic
nominative *lókus
genitive *l̥kwés
singular dual plural
nominative *lókus *lókuh₁(e) *lókewes
vocative *lóku *lókuh₁(e) *lókewes
accusative *lókum *lókuh₁(e) *lókums
genitive *l̥kwés *? *l̥kwóHom
ablative *l̥kwés *? *l̥kwmós
dative *l̥kwéy *? *l̥kwmós
locative *lóku, *lókwi *? *l̥kwsú
instrumental *l̥kwéh₁ *? *l̥kwmís


  • Proto-Albanian:
  • Balto-Slavic:
    • Proto-Slavic: *lokỳ (extended with the collective marker *-h₂) (see there for further descendants)
  • Proto-Celtic: *loku (see there for further descendants)
  • Proto-Germanic: *laguz, *lahō (see there for further descendants)
  • Proto-Hellenic: *lə́kwos (from the oblique grade)
  • Proto-Italic: *lakus


  1. ^ Pokorny, Julius (1959), “*laku-”, in Indogermanisches etymologisches Wörterbuch [Indo-European Etymological Dictionary] (in German), volume 2, Bern, München: Francke Verlag, page 653
  2. ^ Mallory, J. P.; Adams, D. Q., editors (1997), “*lokús”, in Encyclopedia of Indo-European culture, London, Chicago: Fitzroy Dearborn Publishers, page 343
  3. ^ Derksen, Rick (2008), “lokỳ”, in Etymological Dictionary of the Slavic Inherited Lexicon (Leiden Indo-European Etymological Dictionary Series; 4), Leiden, Boston: Brill, →ISBN, page 284
  4. ^ Matasović, Ranko (2009), “*loku-”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, page 243
  5. ^ Kroonen, Guus (2013), “*lagu-”, in Etymological Dictionary of Proto-Germanic (Leiden Indo-European Etymological Dictionary Series; 11), Leiden, Boston: Brill, →ISBN, page 322
  6. ^ Beekes, Robert S. P. (2010), “λάκκος”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), volume I, with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 827
  7. ^ De Vaan, Michiel (2008), “lacus, -ūs”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, pages 322-323