aread > declare
2 "Love have I sure," quoth she, "but lady none; 3 Yet will I not from my own love remove, 4 Neither to your lady will I service do, 5 But wreak your wrongs wrought to this knight alone,
wreak > avenge alone > acting by himself; hence: unaided
6 And prove his cause." With that her mortal spear
cause > case, suit mortal > lethal
7 She mightily aventred towards one,
aventred > (Meaning uncertain: perhaps "thrust". This word also occurs at 403.9:1 and 406.11:3)
8 And down him smote, ere well aware he were,
aware > on his guard
9 Then to the next she rode, and down the next did bear.