7 Has loosed her helmet from her lofty head,

Has > [Who has, when she has]

8 And her Gorgonian shield begins to untie

Gorgonian shield > (The Gorgons were three terrifying females with serpents for hair, wings, brazen claws, and huge teeth. One of them, Medusa, was a mortal. According to most accounts, Medusa desecrated one of Minerva's temples and the goddess turned her into a Gorgon in punishment. Medusa's visage became so horrible that anyone who saw it was turned to stone. Perseus managed to kill her (using a mirror so that he did not have to look at her directly); and afterwards Minerva placed Medusa's head in the centre of her shield or breastplate. See Met. 4.790-803)

9 From her left arm, to rest in glorious victory.

309.23

Which whenas they beheld, they smitten were
2 With great amazement of so wondrous sight,
And each on other, and they all on her
4 Stood gazing, as if suddein great affright
Had them surprised. At last auizing right,
6 Her goodly personage and glorious hew,
Which they so much mistooke, they tooke delight
8 In their first errour, and yet still anew
With wonder of her beauty fed their hungry vew.

1 Which when they beheld, they smitten were 2 With great amazement of so wondrous sight,

of so > by such a

3 And each on other, and they all on her, 4 Stood gazing, as if sudden great affright