them twain > the two of them

8 Arraught the rule, and from their father drew:

Arraught > Arreached, obtained, got into possession of from > [it from] drew > withdrew

9 Stout Ferrex and stern Porrex him in prison threw.

Stout > Bold; arrogant; fierce stern > fierce, merciless

210.35

But {o^}, the greedy thirst of royall crowne,
2 That knowes no kinred, nor regardes no right,
Stird Porrex vp to put his brother downe;
4 Who vnto him assembling forreine might,
Made warre on him, and fell him selfe in fight:
6 Whose death t'auenge, his mother mercilesse,
Most mercilesse of women, Wyden hight,
8 Her other sonne fast sleeping did oppresse,
And with most cruell hand him murdred pittilesse.

1 But O the greedy thirst of royal crown

of > for

2 (That knows no kindred, nor regards no right), 3 Stirred Porrex up to put his brother down; 4 Who, to him assembling foreign might, 5 Made war on him, and fell himself in fight: 6 Whose death to avenge, his mother merciless, 7 Most merciless of women, Widen hight,