μητροφόνος
From LSJ
νεκρὸν ἐάν ποτ' ἴδηις καὶ μνήματα κωφὰ παράγηις κοινὸν ἔσοπτρον ὁρᾶις· ὁ θανὼν οὕτως προσεδόκα → whenever you see a body dead, or pass by silent tombs, you look into the mirror of all men's destiny: the dead man expected nothing else | if you ever see a corpse or walk by quiet graves, that's when you look into the mirror we all share: the dead expected this
English (LSJ)
ον,
A murdering one's mother, ἀντίποιν' ὡς τίνῃς ματροφόνου δύας (Casaub. for μητροφόνας) A.Eu.268 (lyr.). 2 as Subst., matricide, ib.257 (lyr.). II slayer of a mother, Nonn.D.43.147, al.