From *gorьkъ (“bitter”) + *-ostь.
*gořestь f
singular | dual | plural | |
---|---|---|---|
nominative | *gořestь | *gořesti | *gořesti |
genitive | *gořesti | *gořestьju, *gořesťu* | *gořestьjь, *gořesti* |
dative | *gořesti | *gořestьma | *gořestьmъ |
accusative | *gořestь | *gořesti | *gořesti |
instrumental | *gořestьjǫ, *gořesťǫ* | *gořestьma | *gořestьmi |
locative | *gořesti | *gořestьju, *gořesťu* | *gořestьxъ |
vocative | *gořesti | *gořesti | *gořesti |
* 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).