Comment: For PL Ablaut grades *ʔiq̇ʷä- / *ʔäq̇ʷä- / *ʔoq̇ʷä- can be reconstructed. Cf. in Archi: q̇Ie-q̇ʷi- 'sit' (*ʔäq̇ʷä- with reduplication), o=q̇i- id. (*ʔoq̇ʷä-); Rut. s-u=q̇ʷa-/s-i=q̇ʷa- 'sit' (*ʔiq̇ʷä-), but s-ɨ=q̇Ia- 'sit (plur.) (*ʔoq̇ʷä-). Cf. also Kryz. q̇o-q̇un- 'to sit (on horse-back)'. Unclear are reasons for the -n-/-l- conjugation in Kryz. and Bud.