This thesis attempts to investigate and explain the word-formation processes ofrnKistantiiiia, one of the Ethio-Semitic languages. The issues raised are nominali zation,rnverbalization, adj ecti vization, reduplication and compounding. These largely represent thernnon-inflectional aspects of morphology.rnAn overview of Kis tane phonology is included in order to give highlights to thernmorpho-phonemic processes of the language. The major morpho- phonemic processes arernassimilation, insertion and deletion of segments.rnUnder nominali zation, the diffe rent nomina Is are described and their deri vationrnshown. The two major types of nominals are those deri ved concatenatively such as abstractrnnominals and those deri ved non-concatcnati vely sucli as action nominals.rnIn verb-formation, the di ffe rent ve rbal patterns are discussed. Roots are the basesrnfor the formati on of mos t verbals, and in some cases, perfec ti ve forms of verbs are taken asrnbases. Reduplication is discussed under verbali zation, as it is verbal based and res ults inrnverbal outputs.rnAdjectivization is also based on roots, stems and words used as inputs. Formally,rnthere are some adj ectivizers that are similar to some Kistantiiiia nOlllinali zers but withrndifferent function s.rnxrnCompounding in the Kistane language also takes roots, stems or words as bases.rnDifferent lexical categories such as nouns, adjectives, verbs etc. come together to formrncompound adjectives, verbs and nouns.rnSome deri vations are governed by word-formation rules and others arerndemonstrated with the help of morphemic-tier hypothesis which adequately explainsrnSemitic morphology in general.