σιτοπώλης
From LSJ
μὴ κακὸν εὖ ἔρξῃς· σπείρειν ἴσον ἔστ' ἐνὶ πόντῳ → do no good to a bad man; it is like sowing in the sea
English (LSJ)
ου, ὁ,
A corn-merchant, corn-factor, κατὰ τῶν σ., title of Lys.22, cf. Arist.HA578a1 (v.l. -πώλους), SIG589.62 (Magn. Mae., ii B.C.): fem. Adj. σῑτοπώλ-πωλις, ιδος, ἀγορά BMus.Inscr.413.6 (Priene).