szénszén
Szénszén is a Hungarian surname. Its literal translation from Hungarian is "coal coal". The repetition of the word "szén" (coal) suggests it might have originated as a doubled or emphasized form, possibly referring to a significant quantity or a place known for coal. Surnames in Hungary often have occupational, locational, or descriptive origins. In this case, it could relate to someone who worked with coal, or perhaps lived in an area where coal was prominent. While "szén" is a common word in Hungarian, "szénszén" as a surname is not as widespread as some other Hungarian surnames. Research into historical records and genealogical databases would be necessary to determine the precise origins and evolution of this particular surname. It is not uncommon for surnames to have unusual or seemingly redundant formations due to historical linguistic shifts or the compounding of descriptive elements. The distribution and frequency of the surname would also provide clues about its geographical and historical prevalence.