PS

*ksm - to cut, split (Fronzaroli 1969: 13; Kogan 2015: 296)

Akkadian
kasāmu - to cut (down) (CAD K 240, AHw. 453)
Hebrew
ksm - to trim (HALOT 490)
Arabic
ksm - to crumble in one’s hand (LA 12 612)
Tigrinya
kʷäšäm ˀabbälä - to dislocate, to break, to pulverize (TED 1621)