Where does “Κηφᾶς” come from?

Κηφᾶς (Ancient Greek) comes from Aramaic כֵּיפָא, from Classical Syriac ܟܐܦܐ.

Ancestry of “Κηφᾶς”, step by step

Step	Language	Word	Meaning
1	Aramaic	כֵּיפָא	stone, rock; Peter, Cephas; stone, rock
2	Classical Syriac	ܟܐܦܐ	—

Κηφᾶς — Etymology, Origin & Word History | Etymology Explorer