PWS

*šyḥ - to melt (Kogan 2015: 122)

Hebrew
šyḥ - to melt away (HALOT 1477)
Syriac
šyḥ - to vanish, pass away (LSyr. 763, SL 1551)
Arabic
syḥ - to run upon the surface of the earth (Lane 1482)
Geez
sayyaḥa - tabescere facere (to melt away) (LLA 392, CDG 522)