What is the meaning of "Nashamu"?
Rashi: They were astounded, when they heard of his downfall.
Devar Eliyahu: They were astounded when they saw the Rasha's deeds.
Malbim: They were astounded, for this is the scariest punishment, both in this generation and in the olden days. All generations believed that the Nefesh is eternal. They were terrified of this cutting off and eternal loss.
Who are Acharonim and Kadmonim?
Ibn Ezra: Acharonim are Resha'im like him. Kadmonim are his colleagues.
What is "Sa'ar"?
Ramban: It is trembling. Rashi - it cannot be hair. If it were, the accent would be on the Ayin, and there would be a Patach under the Sin, and not Kamatz, even though it is Sof Pasuk!
Ralbag, Metzudas Tziyon: It is a Sa'arah or Sa'ar (storm wind).
