βάσις
Etym. βαίνω
I. "a stepping, step", and collectively "steps", Aesch., Soph., etc.; οὐκ ἔχων βάσιν "power to step", id=Soph.; τροχῶν βάσεις the "rolling" of the wheels, id=Soph.
II. "that with which one steps, a foot", Eur., NTest.
III. "that whereon one stands, a base", Plat.