Comment: Cf. also Lezg. Khl. ič, Tab. Düb. waIč, Ag. Bursh. heč, Fit. hič, Burk. ħäč, Arch. pl. aInš-um. 3d class in all class-distinguishing languages. Obl. base in *-a can be reconstructed on basis of Tsakh. eče-; on the other hand, Rut. obl. base ičir- points to the PL Ablaut *-ä-/*-i-. Thus, the original PL obl. base can be reconstructed as *ħimča-. Medial *-m- is reconstructed by comparing the Arch. -n- with labialisation in Tab. (wič < *ħäwč < *ħämč); in other languages the medial *-m- was lost (regularly) without trace.