PS

*γVp- - film, chaff (Kogan 2005c:188)

Akkadian
ipu - membrane, film (CAD I 173, AHw. 385)
Arabic
γafaⁿ - chaff, refuse that is taken forth from wheat (Lane 2276)
Arabic
γfw - to clean, to clear the wheat (Lane 2276)
Tigrinya
ˁəfaf - chaff, snakeskin, fish scales (TED 1952)