2 Would not endure to be so vile disdained,
vile > vilely; despicably
3 But gathering force, and courage valorous, 4 Encountered him in battle well ordained,
ordained > drawn up
5 In which him, vanquished, she to fly constrained:
fly > flee constrained > compelled
6 But she so fast pursued, that him she took, 7 And threw in bonds, where he till death remained; 8 Als his fair leman, flying through a brook,
Als > Also; as, in the same way leman > lover [Estrildis]
9 She overhent, naught moved with her piteous look.
overhent > overtook; seized