I-VIII -- Abbreviations and symbols -- Introduction -- Chapter 1 The relexification hypothesis in Yiddish -- Chapter 2 Approaches to the study of Yiddish and other Jewish languages -- Chapter 3 Criteria for selecting German and Hebrew-Aramaic and for retaining Slavic elements in Yiddish -- Chapter 4 Evidence for the two-tiered relexification hypothesis in Yiddish: From Upper Sorbian to German and from Kiev-Polessian to Yiddish -- Chapter 5 Future challenges -- References -- Index of names -- Index of examples -- Index of subjects