τὸν ἀπὸ γραμμᾶς κινεῖν λίθον → move one's man from this line, move a piece from this line, try one's last chance, make a last ditch effort
P. and V. ἅπτειν, ὑφάπτειν, ἀνάπτειν, V. ὑπαιθεῖν. verb intransitive; P. and V. ἅπτεσθαι; see burn.