δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
ἰᾱτρική: ион. ἰητρική (ῑᾱ) ἡ (sc. τέχνη) искусство врачевания, медицина Her., Plat., Arst., Sext.
