Where does “i-pk-l-” come from?

i-pk-l- (Proto-Georgian-Zan) comes from Proto-Kartvelian pek-, from Proto-Kartvelian pk- — to grind.

Ancestry of “i-pk-l-”, step by step

Step	Language	Word	Meaning
1	Proto-Kartvelian	pek-	—
2	Proto-Kartvelian	pk-	to grind

Words derived from “i-pk-l-”

Every word from Proto-Kartvelian pk- →Every word from Proto-Kartvelian pek- →