εὔηχος
From LSJ
κρατίστην εἶναι δημοκρατίαν τὴν μήτε πλουσίους ἄγαν μήτε πένητας ἔχουσαν πολίτας → the best democracy is that in which the citizens are neither very rich nor very poor (Thales/Plutarch)
English (LSJ)
ον,
A = εὐηχής, euphonious, Phld.Po.994.24, v.l. in D.H. Comp.14, cf. Longin.24.2; melodious, of the voice, Ath.3.80d; εὔ. φωνητήρια ὄργανα Ph.1.511; ἀρτηρίαν εὔ. παρασκευάζειν Dsc.2.27; κύμβαλα LXX Ps.150.5: neut. pl. εὔηχα as Adv., κελαδεῖν Ps.-Luc.Philopatr.3: regul. Adv. -ήχως Thom.Mag.p.223 R.