Geldsack
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
Geldsack, saccus nummorum. – Geldsäckchen, sacculus nummorum; marsupium. – Geldschuld, s. Schuld no. I.