In a personal communication, M. Krebernik suggests an interesting possibility of comparing proto-MSA *ṯḥr ‘to wound’ with Sargonic Akkadian šaˀāru (iš₁₁-ar) ‘to conquer, to win, to destroy’ (CAD Š₁ 2). This etymology provides a far better balance of semantic and phonological/orthographic features than the more traditional comparisons with either PS *ṯγr ‘to break’ or Arabic ṯˀr ‘to take blood-revenge.’ (Kogan 2015:575, fn. 1493)