This paper presents the first sociophonetic study of Sanapaná (Enlhet-Enenlhet), spoken by around one thousand people in Paraguay. It examines the effects of L2 (Spanish/Guaraní) fluency and loss of L1 exposure on vowel quality and within-category variability of /e, o/ productions in the Sanapaná /e, a, o/ system. Data from eleven native Sanapaná speakers suggest that age and multilingualism may have little explanatory power by themselves. Speakers living in a majority-L2 environment show greater within-category variability and increased convergence of /e, o/ toward the L2 high vowels /i, u/ than daily users of Sanapaná. This suggests that decreased L1 exposure is the main factor driving language shift-related change in Sanapaná. I explain these findings in an exemplar-theoretic framework. Although the number of speakers sampled is limited, these data provide a valuable addition to our knowledge of sociolinguistic variation in small, underrepresented communities.
