μήτρως
From LSJ
ὑπὸ δὲ τῆς φιλαυτίας παρηγμένοι ἄλογα φασὶν τὰ ζῷα ἐφεξῆς τὰ ἄλλα σύμπαντα → it is self-love which leads them to say that all the other animals without exception are non-rational
English (LSJ)
Dor. ματρ-, ὁ, gen. ωος and ω JRS16.58 (Eumeneia) (Att. acc. to Suid.), acc. ωα and ων; pl. always of the third declen.:—
A maternal uncle, Il.2.662, 16.717, Hdt.4.80, etc.: dat. μάτρωϊ Pi.I.7 (6).24. 2 generally, relation by the mother's side, μάτρωες ἄνδρες Id.O.6.77, cf. N.10.37, E.HF43. 3 = μητροπάτωρ, Pi.O.9.63.