γναθόω
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)
A hit on the cheek, Phryn.Com.28.
Greek (Liddell-Scott)
γνᾰθόω: τύπτω τὴν παρειάν, ῥαπίζω, Φρύν. Κωμ. Μον. 9.
Spanish (DGE)
(γνᾰθόω) golpear en la mandíbula Phryn.Com.29.