"hot wind blowing from the Libyan deserts," 1610s, from Italian sirocco, from vulgar Arabic shoruq "the east wind," from Arabic sharqi "eastern, east wind," from sharq "east," from sharaqa "to rise" (in reference to the sun).
sir
sire
siren
Sirius
sirloin
sirocco
sirrah
-sis
sis
sisal
sis-boom-bah