Akkadian

napāḫu - to blow (something), hiss, etc. (CAD N₁ 263, AHw. 732)

PS
*npḫ - to blow, breathe, inflate (SED I No. 45v)
Eventually derived from *pḫ/ḥ ‘to breath, blow, exhale (smell)’ (SED I No. 54v) by prefixation of *n­.