The fact that there was no unified spelling for the surname Oneof when the first surnames were formed allows us to find many surnames similar to Oneof.
Not all surnames similar to the surname Oneof are related to it. Sometimes it is possible to find surnames similar to Oneof that have a different origin and meaning.
Errors in writing, voluntary changes by the bearers, modifications for language reasons... There are many reasons why the surname Oneof may have undergone changes or modifications, and from those modifications, surnames similar to Oneof may have appeared, as we can see.
Discerning whether the surname Oneof or any of the surnames similar to Oneof came first is not always easy. There are many reasons that could have led to the surname Oneof being written or pronounced differently, giving rise to a new, different surname Oneof with a common root.