Reconstruction:Proto-Slavic/prosinьcь

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 *pro- + an element *sinьcь of unclear origin. Multiple theories exist:

From *sijati (“to shine, glow”) referring to the winter solstice. This appears to be the most commonly accepted theory.^[1]^[2]
From *siňь (“gray”) because of the darkness of December nights. (Can this⁽⁺⁾ etymology be sourced?)
Christian sources derive it from *prositi (“to pray”) referring to Christmas. (Can this⁽⁺⁾ etymology be sourced?)

Noun

*prosìnьcь m^[1]

first month after Winter solstice (corresponds to December or January)
Synonym: *kologъ

Declension

Declension of *prosìnьcь (soft o-stem, accent paradigm a)
	singular	dual	plural
nominative	*prosìnьcь	*prosìnьca	*prosìnьci
genitive	*prosìnьca	*prosìnьcu	*prosìnьcь
dative	*prosìnьcu	*prosìnьcema	*prosìnьcēmъ
accusative	*prosìnьcь	*prosìnьca	*prosìnьcę̇
instrumental	prosìnьcьmь, prosìnьcemь^*	*prosìnьcema	*prosìnьcī
locative	*prosìnьci	*prosìnьcu	*prosìnьcīxъ
vocative	*prosìnьče	*prosìnьca	*prosìnьci

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

Descendants

East Slavic:
- Old East Slavic:
  - Russian: про́синец (prósinec, “January”) (archaic)
South Slavic:
- Old Church Slavonic:
  Old Cyrillic script: просиньць (prosinĭcĭ, “January”)
  
  unspecified script:
- Bulgarian: просинец (prosinec, “January”) (archaic)
- Serbo-Croatian:
  Cyrillic script: про̀синац (“December”)
  
  Latin script: pròsinac (“December”)
- Slovene: prosȋnec (“January”) (tonal orthography)
West Slavic:
- Czech: prosinec (“December”)
- Slovak: prosinec (“December”) (archaic)

References

↑ ^1.0 ^1.1 Snoj, Marko (2016) “prosȋnec”, in Slovenski etimološki slovar [Slovenian Etymology Dictionary] (in Slovene), 3rd edition, https://fran.si: “*prosi̋nьcь”
^ Vasmer, Max (1964–1973) “про́синец”, in Oleg Trubachyov, transl., Этимологический словарь русского языка [Etymological Dictionary of the Russian Language] (in Russian), Moscow: Progress

[SES-1] 1.0 ^1.1 Snoj, Marko (2016) “prosȋnec”, in Slovenski etimološki slovar [Slovenian Etymology Dictionary] (in Slovene), 3rd edition, https://fran.si: “*prosi̋nьcь”

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

[1]

[2]