Probably from the base of showq; pedestrian; Shashak, an Israelite -- Shashak.
see HEBREW showq
H8349. Shashaq
שָׁשָׁק (Baer Gi; van d. H. שָׁשָׁ֑ק שָׁשַׁק,)
proper name, masculine in Benjamin, 1 Chronicles 8:14, 25; Σωκηλ, Σωιηκ, A Σωσηκ, ᵐ5L Σισαχ (according to Simon. (Thes) = שַׁקְשַׁק one longed for (√ שׁקק)).