φερέοικος
From LSJ
οὐκ ἔστι γῆρας τοῦδε τοῦ μιάσματος → that pollution never wears out, that pollution can never grow old
English (LSJ)
ον,
A carrying one's house with one, of the Scythians in Hdt.4.46. II Subst., house-carrier, i.e. snail, Hes.Op.571: acc. to others, a kind of wasp, or a tortoise, Hsch., EM790.35, cf. φέροικος.