Date of Award

Spring 1-1-2015

Document Type


Degree Name

Master of Arts (MA)



First Advisor

Kristine Stenzel

Second Advisor

Zygmunt Frajzyngier

Third Advisor

Rebecca Scarborough


This study first postulates a set of vowels for Proto-Kotiria and Wa'ikhana informed by previous studies which reconstructed the vowels for Proto-Tukanoan, the family to which Kotiria and Wa'ikhana belong, and by the modern vowel inventories of these languages. Then, a comparative description of vowel pronunciation between two time points, 1905 and 2010, is undertaken. This description reveals that, while there has not been a change in vowel inventory, there are differences in speakers' production of vowels between these two times. The suprasegmental systems as well as the aspiration patterns of each of these languages is also looked at as possible explanation for changes in pronunciation.