Thesis (Ph. D (African Languages))--University of Pretoria, 2003. / Includes bibliographical (leaf 178-191).

Cette thèse porte sur le maba, une langue nilo-saharienne du groupe maban, parlée à l’Est du Tchad par quelques 300.000 locuteurs. Cette langue est très peu décrite, et nous avons tenté de faire ressortir les caractéristiques phonologiques et morphosyntaxiques de la langue.Dans un premier temps, nous avons décrit l’inventaire des phonèmes ainsi que la formation des mots. Puis nous avons abordé le système nominal, c’est-à-dire le nom, les déterminants du nom ainsi que le constituant nominal. L’une des particularités du maba sont les coverbes, lexèmes actualisés soit à l’aide d’un morphème nominal ou d’un verbe support. Nous avons traité le système verbal, décrivant la morphologie du verbe ainsi que les TAM et les opérations de modifications de la valence. Nous nous sommes attachée à décrire les propositions complexes, qu’elles soient complétives ou adverbiales, subordonnées, coordonnées ou juxtaposées. L’un des points saillants du système est la fréquence de l’emploi des converbes, formes verbales non finies, dans le discours. Pour terminer la description, nous nous sommes attardée sur le discours, mettant en évidence quelques mécanismes de focalisation et de topicalisation, et revenant sur le discours rapporté.L’une des traits caractéristiques de la langue est la complexité du nombre, tant nominal que ver-bal, ceci étant une particularité des langues nilo-sahariennes de façon générale. Le marquage du nom-bre est morphologique – suffixation, ou syntaxique – indiqué par l’accord entre le nom et ses dépen-dants, le nom et le verbe ou le verbe et l’objet. / This thesis concerns Maba, a Nilo-Saharan language from the Maban group, spoken by some 300,000 speakers in Eastern Chad. The language has been very little studied up to now, and my aim in this thesis has been to research and describe its phonological and morphological characteristics.I begin by describing the phoneme inventory and the rules governing word formation. This is followed by a consideration of the nominal system, including sections on the noun, the noun determi-nants and the noun phrase. One of the points of special interest in the language is the use of co-verbs. Co-verbs are lexemes which are accompanied either by a nominal morpheme or by a support verb. The thesis continues with a description of the verbal system, including the verb morphology, the TAM sys-tem and modifications in valency. This is followed by a discussion of complex clauses, including com-pletive and adverbial clauses, subordinate clauses, and coordinate and juxtaposed clauses. Then the discussion returns to the co-verbs, examining the frequency of use of the ‘non-finished’ verb form in the discourse. To close the description, we look at other aspects of discourse, showing some topicalisa-tion and focalisation mechanisms, and finishing with reported speech.One of the characteristics of the language which is featured in this thesis is the complexity of number, be it nominal or verbal number. This complexity is a particularity of Nilo-Saharan languages as a whole. Number is marked morphologically, by suffixation, or syntactically, by concord between the noun and its dependants, the noun and the verb or the verb and the object.

Gumuz is a Nilo-Saharan dialect cluster spoken in the river valleys of northwestern Ethiopia and the southeastern part of the Republic of the Sudan. There are approximately 200,000 speakers, the majority of which reside in Ethiopia. This study is a phonological and grammatical analysis of two main dialects/languages: Northern Gumuz and Southern Gumuz. The study provides an overview of the Gumuz people and culture, including historical accounts of the language(s) and migration patterns. Most major aspects of the language are described and analyzed in detail: phonology, nouns, pronouns, demonstratives and other noun phrase constituents, verbs and verbal morphology, noun incorporation, verbal classifiers, noun categorization, basic clauses, and subordinate clauses. Northern and Southern Gumuz varieties are contrasted throughout. Gumuz tone has two levels, High and Low, with tonal downstep of High. The tonal melody on bound pronominals on verbs indicates transitivity. Nouns are divided into two basic types: relational and absolute. Relational nouns have an inherent relationship with another nominal element, either within a noun-noun compound or with a (historical) possessive affix. Two sets of relational nouns --attributive and relator nouns-- obligatorily take an inherent possession suffix if not in a compound. Gumuz has two noun-noun constructions: the Associative Construction and the Attributive Construction. The first is left-headed with `noun of noun' semantics. The second is right-headed with the initial noun expressing an inherent quality of the second. Certain body part terms have grammaticalized as a variety of other morphosyntactic categories, in particular as relator nouns, verbal classifiers, and class morphemes, the final two of which are noun categorization devices. Many of these same body part terms can be incorporated into the verb or form part of lexicalized verb-noun compounds. Deverbal nominalizations with /ma-/ are found throughout the language structures. These /ma-/ nominalizations serve as both subject and object complements. They are also commonly found in other subordinate clauses such as relative and adverbial clauses. Purpose clauses are formed with the dative preposition plus a /ma-/ nominalization. Finite purpose clauses take pronominal inflection and have further grammaticalized as future tense main clause verbs in Southern Gumuz.