From *bez- (“without”) + *dъno (“bottom”) + *-a. Compare Ancient Greek ἄβυσσος (ábussos), Sanskrit अगाध (agādha, “fathomless; abyss, chasm”) for a similar formation.
*bezdъna f
singular | dual | plural | |
---|---|---|---|
nominative | *bezdъna | *bezdъně | *bezdъny |
genitive | *bezdъny | *bezdъnu | *bezdъnъ |
dative | *bezdъně | *bezdъnama | *bezdъnamъ |
accusative | *bezdъnǫ | *bezdъně | *bezdъny |
instrumental | *bezdъnojǫ, *bezdъnǫ** | *bezdъnama | *bezdъnami |
locative | *bezdъně | *bezdъnu | *bezdъnasъ, *bezdъnaxъ* |
vocative | *bezdъno | *bezdъně | *bezdъny |
* -asъ is the expected Balto-Slavic form but is found only in some Old Czech documents; -axъ is found everywhere else and is formed by analogy with other locative plurals in -xъ.
** 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).