Paradigmatic structure in the tonal inflection of Amuzgo

Abstract

The tonal inflection of verbs of the Amuzgo language of San Pedro Amuzgos (Oto-Manguean, Mexico) displays a great degree of allomorphy. When faced with allomorphy of this sort, the inflectional class model often reveals an internal logic in a system, but in the case of Amuzgo organizing the inflection into tonal classes results instead in a system which is seemingly chaotic, and somewhat impractical for descriptive purposes. In order to make sense of the apparent chaos, in this paper I pursue an alternative view of the data based on characterizing verbs firstly according to their paradigmatic structure with regard to tonal inflection and then characterizing tonal exponents by way of default and implicative rules of exponence which allow us to comprehend the core of this inflectional system. Having identified this core, I then show how verbs relate to each other on a continuum of morphological complexity.