ἀλλὰ σὺ μὲν νῦν στῆθι καὶ ἄμπνυε → but you, stop now and catch your breath | but do thou now stand, and get thy breath
P. εἰρηνικῶς.
calmly: P. and V. ἡσύχως (rare P.), ἡσυχῆ.