The Proto-Indo-European word *gerbʰ-
Word *gerbʰ-
Meaning to scratch
See also Armenian: grabbar ‘written’
Greek: γραφή ‘writing’
Synonyms *drep-

Comments
Russ. žrebij, Old Prussian gīrbin, Gk. graphō, Gm. kerban/kerben, Eng. ceorfan/carve, Arm. kerel/gerel, Alb. gërvish, Ltv. grīpsta, OCS žrĕbŭ

Other words that might be of interest
*bʰlaĝ- ‘to strike’, *bʰlihₓĝ- ‘to strike’, *gʷel- ‘to strike, to stab, to pierce’, *gʷhen- ‘to strike’, *wel(h₂)- ‘to strike, to tear at’, *merd- ‘to rub, to scrape’, *plehₐk/g- ‘to strike, to strike ones breasts’, *kelh₁- ‘to strike’