What is "amigna"

Amigna is one of the woredas in the Oromia Region of Ethiopia. Part of the Arsi Zone, Amigna is bordered on the south by Seru, on the southwest by Robe, on the west by Sude, on the northwest by Chole, on the north by Gololcha, and on the east by the Mirab (West) Hararghe Zone. Towns include Adele.