This work provides the first truly comprehensive and systematic reconstruction of proto-Afroasiatic (proto-Afrasian). It rigorously applies, throughout, the established canon and techniques of the historical-comparative method. It also fully incorporates the most up-to-date evidence from the distinctive African branches of the family, Cushitic, Chadic, and Omotic. Using concrete and specific evidence and argument, the author proposes full vowel and...