8 But to the ground the idle quarrel fell:

idle > vain, futile quarrel > arrow (normally applied to the arrow or bolt for a crossbow, a weapon favoured by the medieval French and greatly disdained by English longbowmen)

9 Then he another and another did expel.

211.25

Which to preuent, the Prince his mortall speare
2 Soone to him raught, and fierce at him did ride,
To be auenged of that shot whyleare:
4 But he was not so hardie to abide
That bitter stownd, but turning quicke aside
6 His light-foot beast, fled fast away for feare:
Whom to pursue, the Infant after hide,
8 So fast as his good Courser could him beare,
But labour lost it was, to weene approch him neare.

1 Which to prevent, the prince his mortal spear

mortal > lethal, deadly

2 Soon to him raught, and fierce at him did ride,

raught > reached

3 To be avenged of that shot whilere: