From Halopedia, the Halo wiki
Escharum is a prominent Jiralhanae War Chief within the Banished. In the absence of the faction's founder and leader Atriox, Escharum rose to power within the Banished and would lead the faction to victory against the UNSC in late 2559, managing to seize control of Zeta Halo. He is also Atriox's former mentor.
The name Escharum may derive from the Latin word Eschara meaning "scar, scab". Fitting as early concept art shows Escharum with a more prominent facial disfigurement and his present model showing scars across his blinded eye and on the right side of his lip.
List of appearances