... It seems to be a chameleon-like word. :)
...But for Karpathos I'd go with whipped or lashed, since I don't really get or like the use of λογχισμένα in that sentence.
Maybe it means "hewn or roughly-hewn"/"roughly chiseled/hacked (away)" - as in the landscape was roughly cut and shaped (you could say mercilessly so, by the wild winds) - giving rise to the bleak, rugged landscape?
...
“When I use a word,” Humpty Dumpty said, in rather a scornful tone, “it means just what I choose it to mean—neither more nor less.”
“The question is,” said Alice, “whether you can make words mean so many different things.”