τέταρτος
I. "fourth", Lat. quartus, Hom.
II. τὸ τέταρτον, as adv. "the fourth time", id=Hom.: as adv., without Art., "fourthly", Plat.
III. ἡ τετάρτη:
1. (sub. ἡμέρα), "the fourth day", Hes., Xen.
2. (sub. μοῖρα), "a liquid measure" (cf. our "quart)", Hdt.