【How-to】What is the difference between rebbe and rabbi

The term “frenk” for a sephardic Jew is indeed regarded as insulting. Strange as it may seem, in its original meaning, the word Frenk meant Ashkenazi, and is derived, of course, from the word for France (Frankreich, in German, is clearly related). … Hence the common surname Ashkenazi among Sepharadim to this day.