ἔδαφος
Etym. prob. from same Root as ὀδός, οὖδας
1. "the bottom, foundation, base" of anything, Thuc.; ἔδαφος νηός "the bottom, hold" of a ship, Od.; ἔδ. ποταμοῦ Xen.
2. "the ground-floor, pavement", οἴκου Hdt.; καθαιρεῖν εἰς τὸ ἔδαφος to rase to the "ground", Thuc.
3. "ground, soil, land", Aeschin., Dem.