μητροφθόρος
From LSJ
ἔξαψις σφοδρὰ μετὰ πολλῆς βίας πίπτουσα ἐπὶ γῆς → a violent flare-up falling on the ground with great force, thunder and lightning
English (LSJ)
ον,
A defiling one's mother, AP9.498, Agath.2.31.
German (Pape)
[Seite 180] die Mutter verderbend, mordend, Ep. ad. 633 (IX, 498).
Greek (Liddell-Scott)
μητροφθόρος: -ον, ὁ φονεύων τὴν ἰδίαν μητέρα, μητροκτόνος, Ἀνθ. Π. 9. 498. 2) ὁ ἐλθὼν εἰς σαρκικὴν μῖξιν μετὰ τῆς ἑαυτοῦ μητρός, Ἀγαθ. 134, 8.