I.terra-firma, the land, as opp. to the sea, Hom., Hes., etc.; κατ᾽ ἤπειρον by land, Hdt.; μήτ᾽ ἐν θαλάττῃ μήτ᾽ ἐν ἠπείρῳ Ar.:— hence in Od., even an island is called ἤπειρος.
II.the mainland of Western Greece, opp. to the neighbouring islands (afterwards called Ἤπειρος as n. pr.), Od.:—then, generally, the mainland, Hdt., attic
deriv. uncertain