PCS

*ḥp - to walk barefoot (Kogan 2015: 210)

biconsonantal element and its various extensions, v. Nöldeke 1910:186‒187, Zaborski 1971:68

Hebrew
yāḥēp - barefoot (HALOT 407)
Syriac
nḥp - to be barefoot (LSyr. 423, SL 908)
Syriac
ḥepyāy - barefoot (LSyr. 249, SL 481)
Arabic
ḥfy - to go barefoot (Lane 604)
Mehri
ḥáyfi - to be without sandals and unable to walk (ML 170)
borrowed from Arabic