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.

Jewish Palestinian Aramaic
bsr - to despise, to put to shame (DJPA 106)
Christian Palestinian Aramaic
bsr - to despise, to loath (DCPA 54)
Syriac
bsr - to rebuke, to put to shame (LSyr. 81, SL 167)
Mandaic
bsr - to despise, to scorn (MD 68)