The Proto-Kartvelian word ṭḳec₁-
Word ṭḳec₁-
Meaning to hit, beat, to strike

Heinz Fähnrich, Surab Sardshweladse: Etymologisches Woerterbuch der Kartwel-Sprachen, 1995 Brill

Other words that might be of interest
arƷ₁- ‘to bend, bent’, berg ‘strike, to break’, k(a)m- ‘to do, make’, ḳ̣ed ‘to build, construct’, kwec ‘to cut’, prcxa ‘nail, claw’, r(e)c₁x- ‘to wash’, xep ‘to break, smash’, γun- ‘to bend’, γwel ‘to bend, curve’