1 As when Jove's harness-bearing bird from high

harness > {Military equipment or accoutrements} bird > (The eagle, which carries his thunderbolts)

2 Stoops at a flying heron with proud disdain,

Stoops > Swoops disdain > indignation; anger

3 The stone-dead quarry falls so forcibly 4 That it rebounds against the lowly plain, 5 A second fall redoubling back again. 6 Then, thought the prince, all peril sure was past, 7 And that he victor only did remain;

victor > [as victor; victorious] only > solely

8 No sooner thought, than the carl as fast

carl > villain, churl

9 Gan heap huge strokes on him, as ere he down was cast.

Gan > Did; began to