εὐδαιμονίζειν

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

Source

Greek > English (Woodhouse Verbs Reversed)

(see also εὐδαιμονίζω): compliment on, congratulate on, consider happy, think happy, wish a person joy