5 That deep engorges all this world's prey;

engorges > devours

6 Which, having swallowed up excessively,

excessively > excessively; greedily, intemperately

7 It soon in vomit up again does lay,

lay > deposit

8 And belches forth its superfluity,

belches > spews

9 That all the seas for fear do seem away to fly.

That > [So that] fly > flee