ἐλεγκτέον
From LSJ
δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
English (LSJ)
(ἐλέγχω)
A one must refute, Pl.Lg.905d; one must reject, disapprove, Ath.Med. ap. Orib.inc.23.13. b one must test, Onos.1.19. c one must convict, τινά τινος Them.Or.21.253a. 2 ἐλεγκτέος, α, ον, to be refuted, Str.2.1.35.