Where does “منفعة” come from?

منفعة (Arabic) comes from Arabic نفع, from Arabic ف, from Arabic نَفِدَ — to run out, to give out.

Ancestry of “منفعة”, step by step

Step	Language	Word	Meaning
1	Arabic	نفع	to profit, to benefit; verbal noun of نَفَعَ;...
2	Arabic	ف	then, and then; and so, thus, hence, therefore;...
3	Arabic	نَفِدَ	to run out, to give out

منفعة — Etymology, Origin & Word History | Etymology Explorer