μητροπάτωρ
From LSJ
πολλὰ δ' ἄναντα κάταντα πάραντά τε δόχμιά τ' ἦλθον → and ever upward, downward, sideward, and aslant they went
English (LSJ)
[ᾰ], ορος, ὁ,
A mother's father, grandfather, Il. 11.224, Hdt.1.75, 3.51, etc.
German (Pape)
[Seite 180] ορος, ὁ, der Vater der Mutter, der Großvater mütterlicherseits; Il. 11, 224; Her. 3, 51. 6, 131 u. Sp., wie Luc. Somn. 7.
Greek (Liddell-Scott)
μητροπάτωρ: [ᾰ], -ορος, ὁ τῆς μητρὸς πατήρ, πάππος πρὸς μητρός, Ἰλ. Λ. 224, Ἡρόδ. 1. 75., 3. 51, κλ.