Ge-cyrnod

According to the Old English Dictionary:

ge-cyrnod

adj. Jagged, having grainlike excrescences :-- Wiþ scurfedum nægle; nim gecyrnadne sticcan, sete on þone nægl wið þá wearta, Lch. ii. 150, 4. Gecyrnode cambas serratas cristas (of a cock), An. Ox. 26, 15. ge-cyrnod