μεσοπύγιον
μεσοπύγιον, part between the buttocks
μεσο-πύγιον [ῡ], τό,
- part between the buttocks, Sor. 1.102, Sch. Ar. Pl. 122.
μεσοπύγιον, τό, der Raum zwischen den Hinterbacken, Schol. Ar. Plut. 122.