Arabic

fwḫ - to rise, diffuse itself (wind, odour); to make a noise (wind) (BK 2 644, Lane 2456)

PWS
*pḫ/ḥ - to breathe, blow, exhale (smell) (SED I No. 54ᵥ)
Reconstructed as a biconsonantal root with various ways of triconsonantization (insertion of medial ­w­, doubling of the second radical, etc.).