εὐμελής
From LSJ
ἰσότης φιλότητα ἀπεργάζεται → equality leads to friendship
English (LSJ)
ές,
A melodious, μουσική Arist.Pol. 1341b26, Sopat.10; opp. ἐμμελής (metrical), D.H.Comp.11, etc.: generally, agreeable, συμπόσια Pl.Ax.371d. Adv. -λῶς gracefully, Machoap. Ath.13.577d. II with stout limbs, Ael.Fr.110.