Boy name origins & meanings
- Arabic : Powerful
Family name origins & meanings
- Hungarian (Kádár) and Slovak (Kadár) : occupational name for a cooper, from Hungarian kádár, a Slavic loanword.
- Hungarian : from a personal name in Hun mythology. In 19th-century Hungarian romantic literature this was taken as a common noun meaning ‘judge’ or ‘chieftain’, from the time of the Magyar conquest of the Carpathian Basin.
- Jewish : in some cases an adoption of the Hungarian name; in others a variant of Kader.