Cearcian

According to the Old English Dictionary:

cearcigan;

cearcian

part. cearciende; p. ode; pp. od To chatter, creak, crash, gnash; strīdēre, strīdĕre, crepitare :-- Cearciende téþ gnashing the teeth; strīdentes dentes, Som. Ic cearcige oððe gristbítige strīdeo vel strīdo, Ælfc. Gr. 26, 5; Som. 29, 7. cearcian