From the same as cuwc; a moth (from the agility of the fly) -- moth.
see HEBREW cuwc
H5580. sas
סָ֑ס noun masculine moth (סָסָא ᵑ7, Syriac ; Assyrian sâsu, DlHWB 506; Arabic , ; Ethiopic Thes LagArmen. Stud. § 2262 compare Armenian zez = Greek σής, which is derived from סָס by BoHieroz. iii. 514 LewyFremdw. 16 f.); — סָ֑ס יאֹכְלֵם וְכַצֶּמֶר Isaiah 51:8.