Reconstruction:Proto-Slavic/blizьnьcь

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

From *blizьnъ (“near, fellow”) +‎ *-ьcь. The Bulgarian, Macedonian, and Polish forms are formed with the affix *-(j)akъ. Belarusian and Ukrainian forms represent a contamination between the two versions.

Noun

*blizьnьcь m

twin

Declension

Declension of *blizьnьcь (soft o-stem)
	singular	dual	plural
nominative	*blizьnьcь	*blizьnьca	*blizьnьci
genitive	*blizьnьca	*blizьnьcu	*blizьnьcь
dative	*blizьnьcu	*blizьnьcema	*blizьnьcemъ
accusative	*blizьnьcь	*blizьnьca	*blizьnьcę̇
instrumental	blizьnьcьmь, blizьnьcemь^*	*blizьnьcema	*blizьnьci
locative	*blizьnьci	*blizьnьcu	*blizьnьcixъ
vocative	*blizьnьče	*blizьnьca	*blizьnьci

^* -ьmь in North Slavic, -emь in South Slavic.

Descendants

East Slavic:
- Belarusian: блізню́к (bliznjúk), блізня (bliznja), блізнё (bliznjó)
- Russian: близне́ц (bliznéc)
- Carpathian Rusyn: близнець (blyznecʹ)
- Ukrainian: близню́к (blyznjúk), близня́ (blyznjá)
South Slavic:
- Old Church Slavonic:
  Cyrillic: близньць (bliznĭcĭ)
- Bulgarian: близна́к (bliznák)
- Macedonian: бли́знак (blíznak)
- Serbo-Croatian:
  Cyrillic script: близа́нац
  
  Latin script: blizánac
- →? Albanian: binjak
- →? Aromanian: biznat, biznatu, binat, binatu, bisnat, bisnatu, bliznac, bliznacu
West Slavic:
- Old Polish: bliźniec
  - Polish: bliźniec (obsolete)

References

Trubachyov, Oleg, editor (1975), “*blizьnьcь”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 2 (*bez – *bratrъ), Moscow: Nauka, page 123