Diósi

Diósi is a surname of Hungarian origin. It is believed to be derived from the given name Diószegi, which itself has roots in the Hungarian word "dios," meaning walnut. The surname likely indicated a person from a place associated with walnut trees or someone who was a vendor of walnuts. As with many surnames, its widespread adoption would have occurred during the period when hereditary surnames became common in Hungary, generally between the 15th and 18th centuries.

Variations of the surname Diósi may exist due to regional dialects, historical transcription errors, or assimilation into other cultures. People bearing the Diósi surname can be found in Hungary and in countries with significant Hungarian diaspora, such as the United States, Canada, and Australia. The name's prevalence and specific historical context would be tied to the demographic and geographical movements of Hungarian populations throughout history. Genealogical research is often necessary to trace the specific lineage and origins of an individual Diósi family.