Un-wrecen

According to the Old English Dictionary:

un-wrecen

adj. I. of a person, unavenged :-- Sceolde æþeling unwrecen ealdres linnan, Beo. Th. 4877; B. 2443. II. of crime, unpunished :-- Gif hí ðæs wilniaþ, ðæt him hiora yfel unwrecen sié be ðæs gyltes andefne, Bt. 38, 7; Fox 210, 7. un-wrecen