Of uncertain age. According to Machek, perhaps ancient, ultimately from Proto-Indo-European *(s)ter- (“stern, rigid”) + *-ogъ. Karaliūnas further adds as potential cognates Lithuanian stragùs (“strong, stern”), Latvian stragns (“stagnant”). Alternatively, Vasmer (partially following Preobražensky and Mladenov) considers gradual spread, first from Polish srogi (“strict”) into Russian and henceforth into the remaining Slavic languages. The latter is maybe from Proto-Slavic *sorgъ whence also Old Church Slavonic срагъ (sragŭ, “cruel”).
Possibly related to Proto-Germanic *strakaz (“straight”) or Proto-Germanic *strangaz (“tight, strict, straight, strong”).
singular | masculine | feminine | neuter |
---|---|---|---|
nominative | *strogъ | *stroga | *strogo |
genitive | *stroga | *strogy | *stroga |
dative | *strogu | *strodzě | *strogu |
accusative | *strogъ | *strogǫ | *strogo |
instrumental | *strogomь | *strogojǫ | *strogomь |
locative | *strodzě | *strodzě | *strodzě |
vocative | *strože | *strogo | *strogo |
dual | masculine | feminine | neuter |
nominative | *stroga | *strodzě | *strodzě |
genitive | *strogu | *strogu | *strogu |
dative | *strogoma | *strogama | *strogoma |
accusative | *stroga | *strodzě | *strodzě |
instrumental | *strogoma | *strogama | *strogoma |
locative | *strogu | *strogu | *strogu |
vocative | *stroga | *strodzě | *strodzě |
plural | masculine | feminine | neuter |
nominative | *strodzi | *strogy | *stroga |
genitive | *strogъ | *strogъ | *strogъ |
dative | *strogomъ | *strogamъ | *strogomъ |
accusative | *strogy | *strogy | *stroga |
instrumental | *strogy | *strogami | *strogy |
locative | *strodzěxъ | *strogaxъ | *strodzěxъ |
vocative | *strodzi | *strogy | *stroga |