Origins
Origin Account
According to the account in Xing shi kao lüe quoting the Wei shu, the chancellor Ana Hong originally had the surname “Gao Ana,” and people at the time shortened it in address to “Ana.” This is the specific origin account given by the source.
Reference: 阿那姓_阿那姓的来源和历史_百家姓
Research Notes
Evidence Limits
The origin account is presented by the page through Xing shi kao lüe quoting the Wei shu. Therefore, what can be confirmed here is only that the page presents this chain of citation; the page itself is not an independent verification of the original Wei shu text.
Reference: 阿那姓_阿那姓的来源和历史_百家姓