What is the translation of "ve'Hamam Mehumah Gedolah"?
Rashi: He (Hashem) will throw them 1 into utter confusion'.
Rashbam: He will cause utter confusion. 2
Rashi: The second 'Mem' serves as a suffix, because, because, if it was part of the root word, it ought to be punctuated with a 'Patach' - as in Yeshayah, 28:28 - and not with a 'Kamatz'.