LSJ
τό, public granary, storehouse, or wheat-fund, = σιτωνικόν, IG 14.423 i 37, al. (Tauromenium, ii/i BC).
money for the purchase of corn, corn-money, as part of a soldier΄s pay, UPZ 14.74 (ii BC), PTheb. Bank 6.3, 7.3, al. (ii BC). name of a tax, prob. levied to provide cornmoney, BGU 1846.5 (i BC).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)