Múþettan

According to the Old English Dictionary:

múþettan

p. te To chatter, let out a secret:-- Hí (the guards at Christ's sepulchre) námon þone sceatt and swá þeáh múþetton and on synderlicum rúnungum ꝥ riht eall rǽddon, Hml. A. 79, 160. muþettan