Proto-Kartvelian: *barʒg-
Russian meaning: колючки, колючее растение
English meaning: thorns, thorny plant
Georgian: barʒg-, baʒg-
Megrel: *burʒg- (suggested based on Georgian Gur. burʒg-)
Notes and references: EWK 46. Ср. ПИЕ *bhrst-. (ср. тж. *burčx-). Видимо = *burʒg(a).