μὴ κακὸν εὖ ἔρξῃς· σπείρειν ἴσον ἔστ' ἐνὶ πόντῳ → do no good to a bad man; it is like sowing in the sea
a primitive root; to breathe after, i.e. (figuratively) to be acquiescent: consent, rest content will, be willing.