βρεμέθω

From LSJ

ἐπ' αὐτὸν ἐπενθρῴσκει πυρὶ καὶ στεροπαῖς ὁ Διὸς γενέτας, δειναὶ δ' ἅμ᾽ ἕπονται κῆρες ἀναπλάκητοι → the son of Zeus is springing upon him with fiery lightning, and with him come the dread unerring Fates

Source

Spanish (DGE)

retumbar βροντὴ δὲ βρεμέθουσα Io.Gaz.2.145, βρεμέθοντας Hymn.Is.171 (Andros).