Areal reconstruction

*ŝḥw/*ˀŝḥ - to open one's mouth (LS 427)

Arabic
šḥw - to open one’s mouth (Lane 1514)
Tigre
säḥa - to yawn (WTS 172)
Soqotri
έŝiḥ - to open one’s mouth repeatedly (Naumkin et al. 2019b:75; Naumkin et al. 2022:277, with fn. 91)