δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
ŏpĕrātus: a, um, P. a., v. operor. B.
(1) ŏpĕrātus, a, um, part. p. de operor.
(2) ŏpĕrātŭs,¹⁴ ūs, m., travail : Tert. Prax. 16.