The series builds an extensive collection of high quality descriptions of languages around the world. Each volume offers a comprehensive grammatical description of a single language together with fully analyzed sample texts and, if appropriate, a word list and other relevant information which is available on the language in question. There are no restrictions as to language family or area, and although special attention is paid to hitherto undescribed languages, new and valuable treatments of better known languages are also included. No theoretical model is imposed on the authors; the only criterion is a high standard of scientific quality.

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This grammar is a first detailed description of Qaqet, a non-Austronesian language spoken in the mountainous interior of East New Britain Province, Papua New Guinea. Qaqet belongs to the small Baining language family (comprising six languages), but its wider genetic affiliations remain unclear. It is included among the geographically-defined East Papuan languages. The grammar presents a synchronic description of the language. From a language family perspective, the Baining languages are structurally fairly similar, but there are considerable differences in detail that point to different language-internal developments and grammaticalization paths. From an East Papuan and areal perspective, Qaqet exhibits both typical East Papuan features (e.g., nominal classification, possessor/possessed order, highly compositional lexicon) as well as areal features (e.g., AVO ~ SV constituent order, articles and determiners, prepositions). The description is based on primary data collected during fieldwork (from 2011 onwards), including both natural and elicited data. The description thereby provides new analyses and insights that are relevant to our understanding of the genetic and areal relationships in this region.