Uncertain. Per Trubachev, from an unattested *broskati + *-tь. Both i-stem and yo-stem declension are attested among descendants.
Based on semantic similarities, may reflect pre-Slavic *bro(z)gtь from the sparsely attested Proto-Slavic *brьzgati (“to burst”)/*bražiti (“to decompose, to disintegrate (for organic materials)”) + *-ťь, akin to East Slavic *braga (“pre-distilled alcohol mixture, must”). Possibly ultimately from Proto-Indo-European *bʰreHg- (“to stink”).
*bròščь m
singular | dual | plural | |
---|---|---|---|
nominative | *bròščь | *broščì | *bròščьjē, *bròščē* |
genitive | *bròšči | *bròščьju, *brošču* | *broščь̀jь, *bròšči* |
dative | *broščì | *bròščьma | *broščь̀mъ |
accusative | *bròščь | *broščì | *broščì |
instrumental | *broščь̀mь | *bròščьma | *bròščьmī |
locative | *bròšči | *bròščьju, *brošču* | *broščь̀xъ |
vocative | *brošči | *broščì | *bròščьjē, *bròščē* |
* 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).
singular | dual | plural | |
---|---|---|---|
nominative | *bròščь | *broščà | *broščì |
genitive | *broščà | *broščù | *bròščь |
dative | *broščù | *broščèma | *bròščemъ |
accusative | *bròščь | *broščà | *broščę̇̀ |
instrumental | *broščь̀mь, *broščèmь* | *broščèma | *bròšči |
locative | *broščì | *broščù | *bròščixъ |
vocative | *brošču | *broščà | *broščì |
* -ьmь in North Slavic, -emь in South Slavic.