δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
-ας, ἡdesviación en sent. moral εἰς ... ἀτραπίαν ἐκτρέχουσι Cyr.Al.M.69.565D, cf. Sch.A.R.2.246.
