Adverbs as a word class are notoriously difficult to define. The volume deals with the delimitation of this category, its internal structure, the morphological make-up of adverbs and their positions in syntactic structures. A closer look at diachronic developments sheds light on the characteristics of adverbial word-formation. Taking into account adverbs in German, English, Dutch, French and Italian, the contributions to this volume provide new insights into the characteristics of this heterogeneous and multi-faceted category and will be of interest to linguists working in the fields of morphology, syntax and language change.