τραπέζιον
From LSJ
εἰς πέλαγος σπέρµα βαλεῖν καὶ γράµµατα γράψαι ἀµφότερος µόχθος τε κενὸς καὶ πρᾶξις ἄκαρπος → throwing seeds and writing letters at sea are both a vain and fruitless endeavor
English (LSJ)
τό, Dim. of τράπεζα,
A small table, Phylarch.44 J.: table of a money-changer, Lys.Fr.50. II Geom., trapezium, Arist. Pr.911a7, Archim.Sph.Cyl.1.10, al., D.P.175, Str.2.5.33.