Reconstructions

PArm
*bḥš - to search (EDA I 110)
PArm
*bir- - son (Kogan 2015: 398)
As suggested in Testen 1985, PArm. *bir- probably represents a specific phonological evolution of PWS *bin- (or bṇ-?) ‘son.’ As is well known, this PArm. feature is shared by MSA.
PArm
*barrāḥ- - buck, billy-goat (EDA I 233)
PArm
*bir-t- - daughter (Kogan 2015: 398)
PArm
*bsr - to put to shame, to despise (EDA I 440)
Probably a metaphoric meaning shift “to make bad fame of someone, to spread bad rumors about one” occured.
PArm
*baššāš- - Syrian rue (EDA I 400)
PArm
*bŝm - to be pleasant; to be happy, glad
Is usually considered to be denominative.
PArm
*bṭn - to be pregnant (Kogan 2015: 175)
PArm
*bay- - house (Kogan 2015: 403)
> PS *bayt- with the loss of -t in st. abs.
PArm
*ḏḥl (> dḥl) - to be afraid (Kogan 2015:387)