τὸν πυλῶνα καὶ τὸ ἐν αὐτῷ ἐμπέτασμα → the parodos gateway with its curtain
P. and V. βεβαίως, ἀσφαλῶς, P. ἀκινήτως, V. ἐμπέδως, ἀραρότως (also Plato but rare P.).
stubbornly: Ar. and P. αὐθάδως.