This paper is a preliminary attempt to reconstruct the consonant system
of Proto-East-Cushitic (PEC)one of the four branches of the Cushitic
family. Data are taken from some twenty-odd languages including
unpublished material on a variety of hitherto little known languages.
After discussing a number of general problems raised by the phonological
comparison of the East Cushitic languages, 23 consonants are
reconstructed for the inventory of the proto- language and the evidence
for the reconstructions is presented in the form of cognate sets and
correspondence rules which map the proto-phonemes onto the individual
reflexes. The method employed is that of comparative linguistics as
traditionally employed in Indo-European linguistics.