καρδιαλγέω
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)
suffer from heartburn, Hp.Epid.2.2.1.
German (Pape)
[Seite 1326] Magenschmerzen haben, Hippocr.
Dutch (Woordenboekgrieks.nl)
καρδιαλγέω [καρδιαλγής] lijden aan brandend maagzuur.