PS

*muŝṭ- - comb (Kogan–Krebernik 2021b: 685)

Oddly enough, reflected only in Arabic and Akkadian. Despite all the difficulties, Akkadian to Arabic borrowing is not to be ruled out (Kogan–Krebernik 2021a:392).

Akkadian
mušṭu - comb (CAD M₂ 290, AHw. 687)
Ebla
mu-sa-tum /mušṭum/ - comb (VE 1359, Kogan–Krebernik 2021b: 685)
Arabic
mšṭ - to comb (BK 2 1110, Lane 2717)
mušṭ- ‘weaving reed’