ῥαγάς
From LSJ
νόησε δὲ δῖος Ὀδυσσεὺς σαίνοντάς τε κύνας, περί τε κτύπος ἦλθε ποδοῖιν → godly Odysseus heard the fawning of dogs, and on top of that came the beat of two feet
English (LSJ)
άδος, ἡ, (ῥαγῆναι, ῥήγνυμι)
A fissure in soil, Ephor.65(e) J.; chink, crevice, LXX Is.7.19, AP11.407 (Nicarch.), Zos.Alch.p.186 B.; crack or chap of the skin, Dsc.1.72, cf. Sor.1.60, Gal.19.446, D.L.1.81, EM810.27; fistula and haemorrhoids, Gloss. II = σταφυλίς, ῥωγάς, Hsch. III = rima, γυναικεία φύσις, Gloss.