Surnames Categorized "unknown etymology"

This is a list of surnames in which the categories include unknown etymology.
usage
Arias Spanish
Possibly derived from a medieval given name, of Germanic origin.
Dioli Italian
Meaning unknown.
Muñoz Spanish
Patronymic derived from the medieval Spanish given name Muño, from Latin Munnius, possibly of Germanic origin.
Samara Arabic
Meaning unknown.
Wuopio Swedish
Meaning uncertain, possibly referred to a dweller in a narrow bay with steep shores.