The Proto-Kartvelian word gab
Word gab
Meaning to cook, boil

Comments
G. A. Klimov, Kartvelian, 1998 Walter de Gruyter

Other words that might be of interest
č̣am ‘to eat’, c̣ow- ‘to suck’, s₁w- ‘to drink’, s₁Ʒ1e- ‘milk’, twer- ‘to drink’, xwleṗ- ‘to drink’, *ɣwino- ‘wine’