4 And, lifting up his lumpish head, with blame
lumpish > heavy; sluggish blame > reproach
5 Half angry asked him for what he came. 6 "Hither" quoth he, "me Archimago sent,
Archimago > "Arch Mage", "Arch Magician"
7 He that the stubborn sprites can wisely tame,
can > can; did wisely > by magic arts
8 He bids you to him send for his intent
intent > purpose, intention
9 A fit false dream, that can delude the sleeper's assent."
assent > opinion, concurrence of the will; hence: will