Ebla

za-a-ḫu-um /ṣayāḫum/ - to shout, to cry (VE 589, Kogan–Krebernik 2021b: 688)

PCS
*ṣyḥ - to shout (HALOT 1011, Kogan–Krebernik 2021b: 687)

Compaired to PES *ṣwˁ ‘to calľ