Where does “ذو الكفل” come from?

ذو الكفل (Arabic) comes from Arabic ذُو — owner; possessor of, having; master of.

Ancestry of “ذو الكفل”, step by step

Step	Language	Word	Meaning
1	Arabic	ذُو	owner; possessor of, having; master of

ذو الكفل — Etymology, Origin & Word History | Etymology Explorer