Комментарии: PAT *-la-/-lǝ- 'to go, move, enter' (used only with preverbs); PAK *-ħa- (also with preverbs). Ub. is the only language having a preverbless paradigm (sǝ-wǝ́-n "I enter"). The correspondence PAT *l : PAK *ħ : Ub. w reflects a labialised lateral *Łʷ.
