Simple past tense and past participle of ridge.(verb)
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Use "ridged" in a sentence
"He held her hand over his heart and she felt its heavy beat, then, together, their hands slid over the ridged muscles of his stomach, to the ridged"
"That wretched apology of a creature stripped from me my dirt - encrusted shirt that I had worn since my entrance to solitary, and exposed my poor wasted body, the skin ridged like brown parchment over the ribs and sore-infested from the many bouts with the jacket."
"That wretched apology of a creature stripped from me my dirt-encrusted shirt that I had worn since my entrance to solitary, and exposed my poor wasted body, the skin ridged like brown parchment over the ribs and sore-infested from the many bouts with the jacket The examination was shamelessly perfunctory."