Dict: strongs - Sis
Strongs:
H5516 @ סיסרא sîyserâ' see-ser-aw' Of uncertain derivation; {Sisera} the name of a Canaanitish king and of one of the Nethinim: - Sisera.
H5581 @ ססמי sismay sis-mah'ee Of uncertain derivation; {Sismai} an Israelite: - Sisamai.