Bróðor-bana

According to the Old English Dictionary:

an;

bróðor-bana

m. A brother-slayer, fratricide; fratricida :-- Ic monnes feorh seðe to bróðorbanan I will avenge man's life on the fratricide, Cd. 75; Th. 92, 9; Gen. 1526. broðor-bana