PS

*nšb - to blow (SED I No. 49v, HALOT 728)

Cf. SED I No. 51v&52v (*nšp ‘to blow’ and *nšm ‘to breathe’).

Akkadian
nasābu - to blow away, winnow (CAD N₂ 56, AHw. 758)
In both sources the term is not separated from nasāpu id.
Hebrew
ˀäšnāb - window (HALOT 96)
Related with metathesis?
Hebrew
nšb - to blow (HALOT 728)
Syriac
nšb - to blow (LSyr. 450, SL 951)
Arabic
nsb - IV. to be violent and drive along the dust and pebbles (about wind) (BK 2 1245, Lane 2786)
Tigre
näsbä - to draw phlegm up in the nose (WTS 325)