Of all of the African language families, the Chadic languages belonging to the Afroasiatic macro-family are highly internally diverse due to a long history and various scenarios of language contact. This pioneering study explores the development of the sound systems of the 'Central Chadic' languages, a major branch of the Chadic family. Drawing on and comparing field data from about 60 different Central Chadic languages, H. Ekkehard Wolff unpacks the specific phonological principles that underpin the Chadic languages' diverse phonological evolution, arguing that their diversity results to no little extent from historical processes of 'prosodification' of reconstructable segments of the proto-language. The book offers meticulous historical analyses of some 60 words from Proto-Central Chadic, in up to 60 individual modern languages, including both consonants and vowels. Particular emphasis is on tracing the deep-rooted origin and impact of palatalisation and labialisation prosodies within a phonological system that, on its deepest level, recognises only one vowel phoneme */a/.

Due to a long history of contact, the Chadic languages are the internally most diverse of the Afroasiatic language families, especially in terms of their sound systems. In this ground-breaking study, the author draws on his extensive research experience to unpack the morpho-phonological principles that underpin the languages' diverse prosody effects, arguing that massive variation results from diachronic processes called 'prosodification' of segmental units. The study compares data from 66 of the 79 known languages from the Central branch of the Chadic language family, most of them unwritten and under-researched. It traces language changes for 228 lexical items that can be reconstructed from the proto-language's basic vocabulary, unearthing typological features that link Central Chadic to its deep Afroasiatic heritage. It is accompanied by a set of online appendixes, providing the full analytical apparatus of all lexical reconstructions, with explicit identification of each of the diachronic sound changes and processes involved.

The volume consists of papers prepared for the International Symposium of Chadic Linguistics (Boulder, Colorado, May 1-2, 1987). Although the papers are representative of the current work being done in the field of Chadic linguistics, they also reflect the current and past interests and methodologies of general linguistics. The papers included in the volume should therefore be of interest to a general linguist as much as to the Chadicist or a specialist in some other Afroasiatic branch. The papers are grouped by the areas of linguistic fields and methodologies. Papers on syntax are followed by papers on morphology, phonology, and methodology of historical reconstruction.

This book demonstrates that the grammatical systems of individual languages encode unique semantic structures. Zygmunt Frajzyngier examines these semantic structures with particular reference to how languages convey information about the location of an entity or an event and the movements of an entity in space, drawing on data from eight typologically distinct languages that belong to three branches of the Chadic family. These languages were chosen because some display locative expressions with semantic and syntactic characteristics that have not been observed or described in other languages, most importantly in the coding of what Frajzyngier calls 'the locative domain' in the grammatical system. The volume shows that utterances in a given language are determined by the functions encoded in the grammatical system and by where those functions are encoded; it further shows that syntactic properties and the existence of some lexical items in the language are also determined by those same functions.