Horribly then he gan to rage, and rayle,
2 Cursing his Gods, and himselfe damning deepe:
Als when his brother saw the red bloud +rayle+
4 Adowne so fast, and all his armour steepe,
For very felnesse lowd he gan to weepe,
6 And said, Caytiue, cursse on thy cruell hond,
That twise hath sped; yet shall it not thee keepe
8 From the third brunt of this my fatall brond:
Loe where the dreadfull Death behind thy backe doth stond.

3 rayle > traile 1609, perhaps in defiance of the convention allowing a duplicate rhyme when the meaning of the second word differs from that of the first

1 Horribly then he began to rage, and rail,

rail > {Use abusive language}

2 Cursing his gods, and himself damning deep: 3 Als when his brother saw the red blood rail

Als > Also rail > gush, flow

4 Adown so fast, and all his armour steep,

Adown > Down

5 For very fellness loud he began to weep,

fellness > fierceness