Brother of a gift = liberal. (1.) One of the three giant Anakim brothers whom Caleb and the spies saw in Mount Hebron (Num. 13:22) when they went in to explore the land. They were afterwards driven out and slain (Josh. 15:14; Judg. 1:10). "(2.) One of the guardians of the temple after the Exile (1 Chr. 9:17).
Definition of Ahiman:
"brother of the right hand"