Proto-North Caucasian: *ḳä̆lḳV
Meaning: a small thing
Notes: One of several PEC expressive roots with the structure *KVKV, denoting some small thing (stone, grain, piece of dung etc.) and rather actively merging with each other (see also *ḳV̆rḳV̆-nV, *ḳǝ̄mḳV etc.).