PES

*ṣwˁ - to call (CDG 566)

Compaired to PCS *ṣyḥ ‘to shout’

Geez
ṣawwəˁa - to call, to cry out (CDG 566)
Tigre
ṣäwˁa - to call (WTS 644)
Tigrinya
ṣäwwəˁē - to call, to summon (TED 2600)