The Proto-Kartvelian word s₁w-
Word s₁w-
Meaning to drink
Synonyms twer-, xwleṗ-

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

Other words that might be of interest
č̣am ‘to eat’, c̣ow- ‘to suck’, gab ‘to cook, boil’, s₁Ʒ1e- ‘milk’, *ɣwino- ‘wine’