Rozważania nad etymologią gromu

The Polish appellative grom m. ‘thunderclap’ (< Proto-Slavic *gromъ m. ‘thunder, thunderclap, roar of a thunder’) should be associated with Greek βρόμος m. ‘any loud noise; crackling of fi re; roar of a thunder; roaring of a storm; rage, fury’. Both these nouns derive from the Proto-Indo-European archetype *gu̯ rómos m. ‘loud noise; thunder, thunderclap, roar of a thunder’ (originally nomen actionis with the meaning ‘roaring; thundering’, derived from the root *gu̯ rem- ‘to roar, to thunder’, cf. Gk. βρέμω ‘to roar; to clash, ring (of arms); to shout, rage (of men)’, pol. grzmieć ‘to thunder’). The comparison of PSl. *gromъ with Gk. χρόμος m. ‘neighing or whinnying (of horse)’ is semantically doubtful.