PWS

*ŝˁl - to be white, bright (Kogan 2015:36)

Arabic
šaˁal- - a whiteness in the tail of a horse, and the forelock (Lane 1563)
Mehri
ŝālēt - beeswax, honeycomb (ML 370)
Jibbali
ŝaˁẑɔ́t - honeycomb (JL 244)
Soqotri
ŝáˁal - tooth (LS 431)

See Kogan 2015: 523; 36