συνεισβάλλειν

From LSJ

ὡς τὴν ἐπὶ θανάτῳ ἔξοδον ποιεῖσθαι → regard as going to execution, regard as the outmarch to death

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: συνεισβάλλω) help to attack, join in invading