This volume presents the key examples of morphological correspondences between Indo-European and Semitic languages, afforded by nouns, verbal roots, pronouns, prepositions, and numerals. Its focus is on shared morphology embodied in the cognate vocabulary. The facts that are brought out in this volume do not fit comfortably within either the Indo-Europeanists' or the Semitists' conception of the prehistoric development of their languages. Nonetheless they are so fundamental that many would take them for evidence of a single original source, 'Proto-Nostratic'. In this book, however, it is considered unsettled whether proto-IE and proto-Semitic had a common forerunner. But the IE-Semitic combinations testify at least to prehistoric language communities in truly intimate contact.