Reconstructions

PWS
*paḫiḏ- - hip, thigh (SED I No. 211, Kogan 2011: 225)
On the semantic shift ‘hip, thigh’ > ‘tribal union’ see Kogan-Militarev 2003 295-296.
PWS
*pgˁ - to touch; to fall upon somebody, to attack (EDA I 150)
PWS
*pγr - to open mouth wide (EDA P 126)
PWS
*pḫ/ḥ - to breathe, blow, exhale (smell) (SED I No. 54ᵥ)
Reconstructed as a biconsonantal root with various ways of triconsonantization (insertion of medial ­w­, doubling of the second radical, etc.).
PWS
*pahd- - cheetah (SED II No. 171)
PWS
*pḥd - to be afraid (EDA I 142)
PWS
*pḥḥ - to blow; to waft through (about smell) (SED I No. 54v)
The reconstruction *pḫḫ is also possible.
PWS
*pVḥVr- - kind of worm (SED II No. 172)
Possibly related to PS *pḥr ‘to dig, to make a hole’ which is present in both Arb. and Eth.
PWS
*pḥz - to be insolent (EDA I 141)
PWS
*pakk- - jaw, joint of the jaw (SED I No. 212)
Rather scarce but reliable attestation. -n- in one of the Arb. forms may imply Sem. *pank- > *pakk-. Cf. a variant root *pagg- ‘jaw’: Hbr. pB. pag (Jastrow 1132); Jud. pagga (ibid.), Syr. pagga (LSyr. 555).