Where does “سَيْف” come from?

سَيْف (Arabic) comes from Arabic سَيْف اَلْجَبَّار — sword of the giant.

سَيْف (Arabic): sword

Definitions

Step	Language	Word	Meaning
1	Arabic	سَيْف اَلْجَبَّار	sword of the giant

سَيْف — Etymology, Origin & Word History | Etymology Explorer