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This Proto-Slavic 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.



From Proto-Balto-Slavic *keʔs-, probably from Proto-Indo-European *k(ʷ)eh₁s-. Cognate with Old Prussian kīsman (time) and possibly Albanian kohë (time). Akin to *čajati (to wait, expect) and *čakati, with a semantic development similar to the one found between *godъ and *žьdati (to wait).

The other possibility is from the lengthened grade of Proto-Indo-European *kes- (to go), with a semantic development similar to the one found in Latin annus (year) (< earlier *atnos < PIE *h₂et- (to go); compare Sanskrit अटति (átati, to go)).


*čàsъ m[1][2]

  1. time


Related terms[edit]


  • East Slavic:
    • Old East Slavic: часъ (časŭ)
      • Belarusian: час (čas)
      • Russian: час (čas), часъ (čas)
        • Kildin Sami: ча̄сс (čāss, hour, watch)
        • Yakut: чаас (çaas, hour)
      • Rusyn: час (čas)
      • Ukrainian: час (čas)
  • South Slavic:
  • West Slavic:

Further reading[edit]


  1. ^ Derksen, Rick (2008), “*čàsъ”, in Etymological Dictionary of the Slavic Inherited Lexicon (Leiden Indo-European Etymological Dictionary Series; 4), Leiden, Boston: Brill, →ISBN, page 79: “m. o (a) ‘time’”
  2. ^ Olander, Thomas (2001), “časъ”, in Common Slavic accentological word list, Copenhagen: Editiones Olander: “a (PR 134); d (OSA 140f.); a/d (RPT 99, 101f.) time”