Lewis & Short

rhăgădes, um, f., and rhăgădia, ōrum, n., = ῤαγάδες and ῤαγάδια, a kind of sores or chaps on various parts of the body, Plin. 23, 4, 44, § 87; 23 7 64. § 129; 24, 7, 23, § 39; 28. 6, 18, § 66 (in Cels. 6, 18, 7, written as Greek).