Where does “Syēnītēs” come from?

Syēnītēs (Latin) comes from Latin Syene, from Ancient Greek Συήνη, from Egyptian swnw.

Ancestry of “Syēnītēs”, step by step

Step	Language	Word	Meaning
1	Latin	Syene	Aswan
2	Ancient Greek	Συήνη	—
3	Egyptian	swnw	—

Syēnītēs — Etymology, Origin & Word History | Etymology Explorer