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
vătĭa: ae, v. vatius.
(1) vătĭa, æ, adj. m., v. vatius.
vatia, ae, c. = vatius, Varro LL. 9, 10.