Ethnicity of surname amyx
It could be any ethnicity, actually.
Arpaio can be a Gentile or Jewish surname
Any surname can be of any nationality, these days. But the proud and noble Irish surname of Nugent is a habitation-type surname, originally bestowed upon persons who lived near a place that already had that name, or a similar name. There are many places named "Nogent" in France.
English
Austrian
Dutch
Sicilian
Irish
Italian
Spanish
jewish