I-IV -- Acknowledgments -- Contents -- List of figures. List of tables -- Abbreviations -- Introduction -- PART I -- Chapter 1 Diachrony: Positions and challenges -- Chapter 2 Domains in historical linguistics -- Chapter 3 Reintegrating diachrony: A critique of some theoretical constructs -- Chapter 4 Critical issues: Grammatically, representation, redundancy, and regularity -- PART II -- Chapter 5 Analogy, categorization, and learning -- Chapter 6 Soft Syntax -- Chapter 7 Pathways for diachronic shifts -- Chapter 8 Conclusions -- Notes -- References -- Index of names -- Subject index