Burg-rúne

According to the Old English Dictionary:

burg-rúne

an; -rún, e; f. [Substitute these for burh-rúnan.] A sorceress :-- Burgrúnan furiae. Wrt. Voc. ii. 39, 42. Burhrúnan, 151, 76. Burgrúnae (-e) parcas, Txts. 86, 761. Burgrúnan, An. Ox. 38, 2. Cf. hægtess(e). burg-rune