root out

From LSJ

ὅπουλεοντῆ μὴ ἐφικνεῖται, προσραπτέον ἐκεῖ τὴν ἀλωπεκῆν → if a lionskin doesn't do the trick, put on the fox | if force doesn't work, try cunning | where the lion's skin will not reach, it must be patched out with the fox's

Source