6 But Guyon himself, ere well he was aware, 7 Nigh a spear's length behind his crupper fell,

crupper > {The strap fastened to the back of the saddle and passed under the horse's tail; the horse's rump}

8 Yet in his fall so well himself he bore 9 That mischievous mischance his life and limbs did spare.

mischievous > {Disastrous, producing harm}

301.7

Great shame and sorrow of that fall he tooke;
2 For neuer yet, +sith+ warlike armes he bore,
And shiuering speare in bloudie field first shooke,
4 He found himselfe dishonored so sore.
Ah gentlest knight, that euer armour bore,
6 Let not thee grieue dismounted to haue beene,
And brought to ground, that neuer wast before;
8 For not thy fault, but secret powre vnseene,
That speare enchaunted was, which layd thee on the greene.

2 sith > since 1609

1 Great shame and sorrow of that fall he took;

of > in, from

2 For never yet, sith warlike arms he bore,