Where does “Kunz” come from?

Kunz (English) comes from German Konrad, from Middle High German Kuonrāt, from Old High German Kuonrād, from Proto-West Germanic *Kōnirād.

Ancestry of “Kunz”, step by step

Step	Language	Word	Meaning
1	German	Konrad	—
2	Middle High German	Kuonrāt	—
3	Old High German	Kuonrād	—
4	Proto-West Germanic	*Kōnirād	—

Kunz — Etymology, Origin & Word History | Etymology Explorer