TRENDS IN LINGUISTICS is a series of books that open new perspectives in our understanding of language. The series publishes state-of-the-art work on core areas of linguistics across theoretical frameworks as well as studies that provide new insights by building bridges to neighbouring fields such as neuroscience and cognitive science. TRENDS IN LINGUISTICS considers itself a forum for cutting-edge research based on solid empirical data on language in its various manifestations, including sign languages. It regards linguistic variation in its synchronic and diachronic dimensions as well as in its social contexts as important sources of insight for a better understanding of the design of linguistic systems and the ecology and evolution of language. TRENDS IN LINGUISTICS publishes monographs and outstanding dissertations as well as edited volumes, which provide the opportunity to address controversial topics from different empirical and theoretical viewpoints. High quality standards are ensured through anonymous reviewing.

Although there is only one ergative language in Europe (Basque), perhaps one-quarter of the world's languages show ergative properties, and pose considerable difficulties for many current linguistic theories. R. M. W. Dixon here provides a full survey of the various types of ergativity, looking at the ways they interrelate, their semantic bases and their role in the organisation of discourse. Ergativity stems from R. M. W. Dixon's long-standing interest in the topic, and in particular from his seminal 1979 paper in Language. It includes a rich collection of data from a large number of the world's languages. Comprehensive, clear and insightful, it will be the standard point of reference for all those interested in the topic.

All languages change, just as other aspects of human society are constantly changing. This book is an introduction to the concepts and techniques of diachronic linguistics, the study of language change over time. It covers all themajor areas of historical linguistics, presenting concepts in a clear and concise way. Examples are given from a wide range of languages, with special emphasis on the languages of Australia and the Pacific. While the needs of undergraduate students of linguistics have been kept firmly in mind, the book will also be of interest to the general reader seeking to understand langauge and language change. For this fourth edition, a number of new sections have been written, including many new problems and several datasets. Existing materials have been supplemented with new sections on grammaticalization, tonogenesis, morphological change, and using statistical methods in language classification.