Likely of expressive/onomatopoeic origin. Compared to Proto-Slavic *groza (“horror”), Ancient Greek γοργός (gorgós, “rough, frightsome”), Old Armenian կարծր (karcr, “hard”), which could be related or just similarities.
*gargos[1]
O/ā-stem | |||
---|---|---|---|
masculine | singular | dual | plural |
nominative | *gargos | *gargou | *gargoi |
vocative | *garge | *gargou | *gargoi |
accusative | *gargom | *gargou | *gargoms |
genitive | *gargī | *gargous | *gargom |
dative | *gargūi | *gargobom | *gargobos |
instrumental | *gargū | *gargobim | *gargobis |
feminine | singular | dual | plural |
nominative | *gargā | *gargai | *gargās |
vocative | *gargā | *gargai | *gargās |
accusative | *gargam | *gargai | *gargams |
genitive | *gargās | *gargous | *gargom |
dative | *gargai | *gargābom | *gargābos |
instrumental | *? | *gargābim | *gargābis |
neuter | singular | dual | plural |
nominative | *gargom | *gargou | *gargā |
vocative | *gargom | *gargou | *gargā |
accusative | *gargom | *gargou | *gargā |
genitive | *gargī | *gargous | *gargom |
dative | *gargūi | *gargobom | *gargobos |
instrumental | *gargū | *gargobim | *gargobis |