Комментарии: PTsKh *ʔözʷ; PGB *haz (*-a- is not quite regular here: one would expect PGB *hɔz and Gunz. hɔz). The PTs form is originally an oblique base *ħɔ(r)-z:ʷV-, early reinterpreted as the direct one (cf. analogous cases in words for 'eye' and 'bone' - all of the direct bases ending in PTs *-r).
