#historical naming
- Ardeleanu — A widespread Romanian surname, structurally used as an ethnonym or toponymic indicator to designate a person originating from the historical region of Ardeal (Transylvania). In the past, the name was assigned as a nickname or indicator of origin to young men or families who crossed the mountains and settled in Wallachia, Oltenia, or Moldavia, later becoming a hereditary patronymic fixed in civil registers.