2 Drew out a deadly bow and arrow keen,

keen > sharp

3 Which forth he sent with felonous despite,

felonous > {Cruel, wicked, befitting a felon} despite > malice; anger

4 And fell intent against the virgin sheen:

fell > terrible sheen > shining, resplendent; beautiful

5 The mortal steel stayed not, till it was seen

mortal > lethal

6 To gore her side, yet was the wound not deep, 7 But lightly rased her soft silken skin,

rased > scratched