δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
prognōsis: is, f., = πρόγνωσις.
I Foreknowledge, Isid. 12, 7, 19.—
II Esp., as med. t. t., prognosis, forecast, in disease, Cael. Aur. Tard. 4, 8, 112.
prognōsis, is, f. (πρόγνωσις), pronostic : C. Aur. Chron. 4, 8, 112.
