κατασκαφὴς οἴκησις

From LSJ

λαγὼς τὸν περὶ τῶν κρεῶν τρέχει → save one's bacon, save one's neck, save one's skin

Source

Russian (Dvoretsky)

подземная обитель, могила

Dutch (Woordenboekgrieks.nl)

onderaardse woning