Where does “Caph” come from?

Caph (Italian) comes from Arabic كَفّ, from Proto-Semitic kapp- — palm, hand.

Ancestry of “Caph”, step by step

Step	Language	Word	Meaning
1	Arabic	كَفّ	palm; hand, palm; scalepan
2	Proto-Semitic	kapp-	palm, hand

Caph — Etymology, Origin & Word History | Etymology Explorer