From *o(b)pasьnъ (“vigilant, wary”) + *-ostь (“-ness”).
*o(b)pasьnostь f
singular | dual | plural | |
---|---|---|---|
nominative | *o(b)pasьnostь | *o(b)pasьnosti | *o(b)pasьnosti |
genitive | *o(b)pasьnosti | *o(b)pasьnostьju, *o(b)pasьnosťu* | *o(b)pasьnostьjь, *o(b)pasьnosti* |
dative | *o(b)pasьnosti | *o(b)pasьnostьma | *o(b)pasьnostьmъ |
accusative | *o(b)pasьnostь | *o(b)pasьnosti | *o(b)pasьnosti |
instrumental | *o(b)pasьnostьjǫ, *o(b)pasьnosťǫ* | *o(b)pasьnostьma | *o(b)pasьnostьmi |
locative | *o(b)pasьnosti | *o(b)pasьnostьju, *o(b)pasьnosťu* | *o(b)pasьnostьxъ |
vocative | *o(b)pasьnosti | *o(b)pasьnosti | *o(b)pasьnosti |
* 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).