PS

*ŝVp- - tuft of hair (SED I 259, Kogan 2015: 539)

Proto-MSA
*ŝip-at- - hair (Kogan 2015: 539)

Akkadian
šipātu - wool, fleece (CAD Š₃ 57, AHw. 1244)
Var. šupātu.
Hebrew
ŝāpām - moustache (HALOT 1348)

May be related to *ŝap-at- "lip" with *-m siffixed, however, the meaning 'moustache' permits to relate this term to this root.  

Arabic
šaˁfat­- - lock of hair (BK 1 1240, Lane 1562)
Likely with a secondary ­ˁ­ in Arb. (under the influence of šaˁr­ ‘hair’ ?); cf. a re-duplicated stem in M. Eth. and no trace of ˁ in other Sem.
Tigrinya
šifašǝfti - ciglia degli occhi (eye lashes) (TED 877, Bassano 1918: 239)
Related with reduplication.
Amharic
šǝfašǝft - eyebrow (AED 667)
Related with reduplication.