A.rhythmical order or movement, “κατὰ ῥυθμὸν εὐρυθμίαν παραδιδόναι” Pl.R.522a, cf. Prt.326b; αἱ περὶ τὴν λέξιν εὐ. the measured cadences of language, Isoc.5.27; “ἡ κυκλικὴ εὐ. τῶν περιόδων” D.H. Pomp.6.10.
2. harmony between the orator and his hearers, Plu.2.45e.