Á-hyrdan, -hyrding, -hýrian, -hyrstan
Bosworth & Toller Anglo-Saxon Old English Dictionary - á-hyrdan, -hyrding, -hýrian, -hyrstan
According to the Old English Dictionary:
v. á-hirdan, -hirding, -hýran, -hirstan. a-hyrdan
- á-hyrdan, -hyrding, -hýrian, -hyrstan