ὑπόπετρος
From LSJ
δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
English (LSJ)
ον,
A rocky, γῆ Hdt.2.12, Thphr.CP3.20.5, PTeb.72.14 (ii B. C.), cf. Str.16.2.36; χωρία Dsc.4.33.
German (Pape)
[Seite 1228] unten felsig od. steinig, mit steinigem Boden, Her. 2, 12.