Syriac

blṣ - (etp.) to come to light; (aph.) to uncover (LSyr. 77, SL 160)

PWS

*blṣ - to come out, to be prominent (EDA I 294)

Perhaps related to Akk. balāṣu ‘to thrust’, Arb. blṣ ‘to extort, despoiľ.