What are the connotations of "Morech"?
Rashi: "Morech", from the root 'Rach', implies both 'terrified' and 'weak hearted'.
Targum Onkelos and Targum Yonasan: It means that Hashem will cause them to become broken (or shattered).
What is the meaning of "ke'Kol Aleh Nidaf"?
Rashi (citing Targum Onkelos): It means that even the sound of one leaf banging 1 against another will frighten them.
Targum Yonasan: It means 'like a leaf falling from a tree'.
Rashi: Like the word 'Mashkof', a lintel, against which the door bangs, and 'Mashkofei', which is Onkelos' translation of a wound (See Sh'mos 21:25).
What are the connotations of "Venasu Menusas Cherev"?
Rashi, Targum Onkelos and Targum Yonasan: It means that they will flee as if the enemy was chasing them (with swords drawn).