annoyed > afflicted
4 And wearied his life with dull delays:
dull > {Causing depression; slow}
5 Straight he upstarted from the loathed lea,
Straight > Straightway, immediately upstarted > got up lea > ground; often grassland, hence also: turf, sward
6 And to her ran with hasty eagerness, 7 Like a deer, that greedily embays
greedily > eagerly embays > bathes
8 In the cool soil after long thirstiness,
soil > {Pool or stretch of water used by as a refuge by a hunted deer}
9 Which it in chase endured has, now nigh breathless.