Reconstruction:Proto-Slavic/četvьrtъkъ

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 *četvьrtъ (“fourth”) +‎ *-ъkъ.

Noun

*četvьrtъkъ m

Thursday

Declension

Declension of *četvьrtъkъ (hard o-stem)
	singular	dual	plural
nominative	*četvьrtъkъ	*četvьrtъka	*četvьrtъci
genitive	*četvьrtъka	*četvьrtъku	*četvьrtъkъ
dative	*četvьrtъku	*četvьrtъkoma	*četvьrtъkomъ
accusative	*četvьrtъkъ	*četvьrtъka	*četvьrtъky
instrumental	četvьrtъkъmь, četvьrtъkomь^*	*četvьrtъkoma	*četvьrtъky
locative	*četvьrtъcě	*četvьrtъku	*četvьrtъcěxъ
vocative	*četvьrtъče	*četvьrtъka	*četvьrtъci

^* -ъmь in North Slavic, -omь in South Slavic.

Descendants

East Slavic:
- Belarusian: чацве́р (čacvjér)
- Russian: четве́рг (četvérg)
- Carpathian Rusyn: четве́рь (četvérʹ)
- Ukrainian: четве́р (četvér)
South Slavic:
- Old Church Slavonic:
  Cyrillic: четврьтъкъ (četvrĭtŭkŭ)
  
  Glagolitic: ⱍⰵⱅⰲⱃⱐⱅⱏⰽⱏ (četvrĭtŭkŭ)
- Bulgarian: четвъ́ртък (četvǎ́rtǎk), четвръ́тък (četvrǎ́tǎk) (dialectal)
- Macedonian: четврток (četvrtok)
- Serbo-Croatian:
  Cyrillic script: четвр́так
  
  Latin script: četvŕtak
- Slovene: četŕtək (tonal orthography)
West Slavic:
- Old Czech: čtvrtek
  - Czech: čtvrtek
- Old Polish: czwartek
  - Polish: czwartek
  - Silesian: sztwŏrtek
- Slovak: štvrtok
- Pomeranian:
  - Kashubian: czwiôrtk, czwôrtk
  - Slovincian: czwjortk
- Sorbian:
  - Upper Sorbian: štwórtk
  - Lower Sorbian: stwórtk

Non-Slavic:
- → Hungarian: csütörtök