Reconstruction:Proto-Slavic/tajьna

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

Derived from *tajiti (“to hide”).

Noun

*tajьna f

secret, mystery

Declension

Declension of *tajьna (hard a-stem)

	singular	dual	plural
nominative	*tajьna	*tajьně	*tajьny
genitive	*tajьny	*tajьnu	*tajьnъ
dative	*tajьně	*tajьnama	*tajьnamъ
accusative	*tajьnǫ	*tajьně	*tajьny
instrumental	tajьnojǫ, tajьnǫ^**	*tajьnama	*tajьnami
locative	*tajьně	*tajьnu	tajьnasъ, tajьnaxъ^*
vocative	*tajьno	*tajьně	*tajьny

^* -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: таина (taina)
  - Belarusian: та́йна (tájna)
  - Russian: та́йна (tájna)
  - Ukrainian: та́йна (tájna)
South Slavic:
- Bulgarian: та́йна (tájna)
- Macedonian: тајна (tajna)
- Serbo-Croatian:
  Cyrillic script: та̑јна
  
  Latin script: tȃjna
- Slovene: tájna (tonal orthography)