Swiss. Albeit the last name can be found in other countries as well. Originally it dates from a local version of the first name Martin which explains why it can be found in different countries.
Ethnicity of surname amyx
It could be any ethnicity, actually.
It means "the lady" or "the mistress of the house"
Arpaio can be a Gentile or Jewish surname
Chinese
Dutch
German
irish
jewish
daleb
Turkish
Austrian