Abstract
Abstract This paper addresses one of the open issues in the reconstruction of Proto-Tupi-Guarani (PTG) segmental phonology: The status of the *k -*kʲ opposition. We argue that the contrast is artifactual and that the presumed evidence in favor of PTG *kʲ can be considered as secondary developments of PTG *k in Kayabí, Guarayu, Kagwahiva, Tenetehára, Kamayurá, and Ka’apor. We establish additional facts regarding the structure of PTG and the historical phonology of TG languages, also showing that this finding eliminates the need for an unmotivated split in Pre-PTG history, a problematic feature of current reconstructions of the Proto-Tupian consonant system.
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