This Proto-Slavic entry contains reconstructed words 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 *edīˀnas, from Proto-Indo-European *h₁edʰ-(H)iHnos, with *h₁edʰ- element of unclear origin, ultimately from *(H)óy(H)nos. Cognate with Latvian viêns and Lithuanian víenas. The vowel of the second syllable behaves similarly to a tense jer: in a strong position it manifests as */i/ (sometimes */e/), in a weak position it is dropped.

The West Slavic forms show a depalatalized d.


Proto-Slavic numbers (edit)
1 2  → 
    Cardinal: *edinъ
    Ordinal: *pьrvъ
    Adverbial: *edino šьdy, *edьnojьťi
    Multiplier: *edinakъ
    Collective: *edьnojь


  1. one


Alternative formsEdit

Derived termsEdit

Related termsEdit


Further readingEdit

  • Vasmer, Max (1964–1973) , “один”, in Etimologičeskij slovarʹ russkovo jazyka [Etymological Dictionary of the Russian Language] (in Russian), translated from German and supplemented by Oleg Trubačóv, Moscow: Progress
  • Černyx, P. Ja. (1999) , “один”, in Istoriko-etimologičeskij slovarʹ russkovo jazyka [Historical-Etymological Dictionary of the Russian Language] (in Russian), volume 1, 3rd reprint edition, Moscow: Russkij jazyk, page 593
  • Trubačóv, Oleg, editor (1979) , “*edinъ / *edьnъ”, in Etimologičeskij slovarʹ slavjanskix jazykov [Etymological dictionary of Slavic languages] (in Russian), volume 06, Moscow: Nauka, page 11


  1. ^ Derksen, Rick (2008) , “*edìnъ; *edьnъ”, in Etymological Dictionary of the Slavic Inherited Lexicon (Leiden Indo-European Etymological Dictionary Series; 4), Leiden, Boston: Brill, →ISBN, page 138: “num. o ‘one’”