Where does “Kjaran” come from?

Kjaran (Old Norse) comes from English Ciaran, from Irish Ciarán, from Irish -án, from Middle Irish -án, from Old Irish -án, from Primitive Irish -ᚐᚌᚅᚔ, from Proto-Celtic *-agnos.

Ancestry of “Kjaran”, step by step

Step	Language	Word	Meaning
1	English	Ciaran	—
2	Irish	Ciarán	—
3	Irish	-án	A suffix used to derive instruments, diminutives,...
4	Middle Irish	-án	diminutive suffix
5	Old Irish	-án	diminutive suffix
6	Primitive Irish	-ᚐᚌᚅᚔ	diminutive suffix
7	Proto-Celtic	*-agnos	—

Every word from Proto-Celtic *-agnos →Every word from Irish -án →Every word from Old Irish -án →