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.

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