4 His portance terrible, and stature tall,
portance > demeanour
5 Far passing the height of men terrestrial;
passing > surpassing
6 Like a huge giant of the Titans' race,
Titans > (The firstborn children of Heaven and Earth, as Oceanus,
Rhea, Hyperion, Cronos; see Hesiod, Theogony 132-8)
7 That made him scorn all creatures great and small, 8 And with his pride all others' power deface:
deface > cast in the shade; or: destroy
9 More fit amongst black fiends, than men to have his place.
than > [than among]