Comment: Cf. also Tab. Düb. a=ʁI-, Ag. Bursh. ṭ-aX̀a-. The verb belongs to the weak PL class. The Ag., Rut. and Tsakh. forms contain an expressive preverb *ṭ-. In the Archi form b- is obviously a former class prefix; dur. babχ:Iu-r points to a secondary labialisation *-wχ:I- > *-bχ:Iʷ- in early Archi.
