PNWS

*ḳṣp - to be angry (Kogan 2015:237)

hardly any connection between this root and PWS *ḳṣp ‘to break’ or Akk. kaṣāpu ‘to account?, to wish?, to plan?’. Cf. perhaps Arb raˁdun qāṣifun - šadīdu ṣ-ṣawti

Amarna Canaanite
ḳaṣāpu - to be angry (CAD Q 146, Rainey 1996 II 307‒308)
na-aḳ-ṣa-pu in EA 82:51, [na]-aḳ-ṣa-ap-ti in EA 93:5
Hebrew
ḳṣp - to be angry (HALOT 1124)
Syriac
ḳṣp - to be(come) angry (LSyr. 687, SL 1397)