Reconstruction:Proto-Slavic/osnova

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.

Proto-Slavic

Etymology

Related to *snuti.

Noun

*osnova f

basis, foundation

Inflection

Declension of *osnova (hard a-stem)
	singular	dual	plural
nominative	*osnova	*osnově	*osnovy
genitive	*osnovy	*osnovu	*osnovъ
dative	*osnově	*osnovama	*osnovamъ
accusative	*osnovǫ	*osnově	*osnovy
instrumental	osnovojǫ, osnovǫ^**	*osnovama	*osnovami
locative	*osnově	*osnovu	osnovasъ, osnovaxъ^*
vocative	*osnovo	*osnově	*osnovy

^* -asъ is the expected Balto-Slavic form but is found only in some Old Czech documents; -axъ is found everywhere else and is formed by analogy with other locative plurals in -xъ.
^** The second form occurs in languages that contract early across /j/ (e.g. Czech), while the first form occurs in languages that do not (e.g. Russian).

Descendants

East Slavic:
- Old East Slavic: основа (osnova)
  - Belarusian: асно́ва (asnóva)
  - Russian: осно́ва (osnóva)
  - Ukrainian: осно́ва (osnóva)
South Slavic:
- Bulgarian: осно́ва (osnóva)
- Macedonian: основа (osnova)
- Serbo-Croatian:
  Cyrillic script: о̏снова
  
  Latin script: ȍsnova
West Slavic:
- Old Czech: osnova
  - Czech: osnova
    - Bohemian (Chod dialect): vosnova
- Polish: osnowa

References

Vasmer, Max (1964–1973) “основа”, in Oleg Trubachyov, transl., Этимологический словарь русского языка [Etymological Dictionary of the Russian Language] (in Russian), Moscow: Progress