“…As the noun changed its category from a dependent, inalienable noun denoting a body part ('hand') to an independent, absolute noun ('huka-huka fight'), the occurrence of the noun in question with an Absolute marker is a plausible consequence. One would have, then, at a Pre-Waurá/Mehinaku stage either a form *kapɨ-ʧi or *kapi (< *kapɨ-i), the latter if the semantic shift occurred after the changes that consisted in the loss of the affricate in the PA suffix *-ʧi (or some other, weakened reflex of this affricate) and the 'absorption' of the suffixal high front vowel, as discussed in Carvalho (2015). The change of -*kapɨ to kapi in Waurá/Mehinaku is, therefore, plausibly explained by its functional/semantic shift, its morphosyntactic consequences and the morphophonological developments involving the PA Absolute suffix *-ʧi (see Carvalho, 2015 for details).…”