Transkei
geographical name
Trans·kei (ˌ)tran(t)s-ˈkī 
former enclave in the Republic of South Africa set aside for Black people as part of a government policy of racial segregation
Note: Transkei was nominally granted independence in 1976 with Umtata as its capital but was reincorporated into South Africa in 1994.
Transkeian
(ˌ)tran(t)s-ˈkī-ən
adjective or noun