δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
adj.
P. κούφως ἐσκευασμένος, P. and V. ψιλός, γυμνής (Xen.). Light-armed troops: P. and V. ψιλοί, οἱ, γυμνῆτες, οἱ (Xen.), πελτασταί, οἱ (Eur., Rhes.), P. οἱ ἐλαφροί (Xen.).