δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
bacĕŏlus: used by Augustus for stultus prob. from βάκηλος ὁ ἀνόητος, Hesych., acc. to Suet. Aug. 87.
bacĕŏlus,¹⁶ ī, m. (βάκηλος), imbécile : August. d. Suet. Aug. 87.