1)
Who are the men who were "Nikvu v'Shemos"?
1.
'Rashi': They are the heads of Efrayim - Azaryah ben Yehochanan and his colleagues (verse 12).
2)
Why does it say "va'Yachaziku"?
1.
Malbim: The first ones released them from their Reshus. The latter held them to benefit them ? to feed and clothe them.
3)
What are "Ma'arumeihem"?
1.
'Rashi': (The naked ones); this is like "Arum v'Eryah" (Yechezkel 16:22). Radak ? this is an adjective. Or, it is a noun; one is called Ma'arum. This is the same grammatical form as Migdol.
