The adjective, suffixed with + -ný is derived from Old Czech krušiti (“harrow, earlier grind, crush”), which is from Proto-Slavic *krušiti. This was probably derived from Proto-Slavic *kruxъ ("piece, fragment"), but the reverse way is also possible.[1]
krušný (comparative krušnější, superlative nejkrušnější)
singular | ||||
---|---|---|---|---|
masculine animate | masculine inanimate | feminine | neuter | |
nominative | krušný | krušná | krušné | |
genitive | krušného | krušné | krušného | |
dative | krušnému | krušné | krušnému | |
accusative | krušného | krušný | krušnou | krušné |
locative | krušném | krušné | krušném | |
instrumental | krušným | krušnou | krušným | |
plural | ||||
masculine animate | masculine inanimate | feminine | neuter | |
nominative | krušní | krušné | krušná | |
genitive | krušných | |||
dative | krušným | |||
accusative | krušné | krušná | ||
locative | krušných | |||
instrumental | krušnými |
The adjective is derived from Old Czech krušec (“piece of ore”), derived from Old Czech krušiti (“grind, crush”).
krušný (not comparable)
Nowadays the adjective is used in this sense only in the name Krušné hory (Ore Mountains).
singular | ||||
---|---|---|---|---|
masculine animate | masculine inanimate | feminine | neuter | |
nominative | krušný | krušná | krušné | |
genitive | krušného | krušné | krušného | |
dative | krušnému | krušné | krušnému | |
accusative | krušného | krušný | krušnou | krušné |
locative | krušném | krušné | krušném | |
instrumental | krušným | krušnou | krušným | |
plural | ||||
masculine animate | masculine inanimate | feminine | neuter | |
nominative | krušní | krušné | krušná | |
genitive | krušných | |||
dative | krušným | |||
accusative | krušné | krušná | ||
locative | krušných | |||
instrumental | krušnými |