Heort-gryre
Bosworth & Toller Anglo-Saxon Old English Dictionary - heort-gryre
According to the Old English Dictionary:
es;
- heort-gryre
- m. Terror of heart, mortal terror :-- Fela cynna egesan geweorþað on eorðan folce tó heortgryre, Wlfst. 86, 15. heort-gryre