Fylle-wærc

According to the Old English Dictionary:

felle-wærc, es;

fylle-wærc

n. The falling sickness, epilepsy; ĕpĭlepsia = GREEK :-- Of ðæs magan ádle cumaþ hramma and fyllewærc from the disease of the stomach come cramps and epilepsy, L. M. 2, 1; Lchdm. ii. 174. 25. fylle-wærc