What is "ada'a"

Ada'a is one of the woredas in the Oromia Region of Ethiopia. It is part of the former Ada'a Chukala woreda what was divided between Ada'a and Liben woredas. Part of the East Shewa Zone located in the Great Rift Valley, Ada'a is bordered on the south by Dugda Bora, on the west by the West Shewa Zone, on the northwest by Akaki, on the northeast by Gimbichu, and on the east by Lome.