Reconstructions

PCS
*paḫḫ- - snare, trapping net (Kogan 2015: 195)
PCS
*pVḳVm- - (animal's) mouth, muzzle (SED I No. 214)
Scarce attestation, only in Hbr. pB. (a derived verb), Arb. and Soq.; the latter can be an Arabism — see, however, difference in vocalic structure.
PCS
*pulān- - so and so (Kogan 2015: 196)
for a possible connection with *ply ‘to separate, to distinguish’ v. BDB 811
PCS
*parḫ- - sprout, flower (Fronzaroli 1968: 276, 290; Kogan 2011: 201; Kogan 2012: 233; Kogan 2015: 196)
PCS *parḫ- ‘sprout, blossom’ comes close to PWS *parḫ- ‘chick, brood’, but the diachronic identity between the two sets of forms is not evident. Cf. also PWS *piry- ‘fruit’.
PCS
*pšḥ - to be spacious (EDA I 423)

May be related to Akk. pašāḫu ‘to rest, to calm down’.

PCS
*pṣḥ - to be bright (Bulakh 2003: 45, Kogan 2011: 198)
Akk. peṣû ‘white’ may be related to this root
PCS
*pVṭr- - fungus (EDA I 518)
PCS
*pawd- - (lock of) hair (SED I No. 220)
Scarce but reliable attestation in Ugr. and Arb.; vocalism quite conventional based on Arb. only.
PCS
*rbb - to be large, numerous (Kogan 2015: 196)
PCS
*ribab-at-/ribb-at-, *ribw-at- - ten thousand, myriad (Kogan 2015: 197)