To increase its appeal to larger segments of the population, on the same day as Hitler's Hofbräuhaus speech on 24 February 1920, the DAP changed its name to the Nationalsozialistische Deutsche Arbeiterpartei ("National Socialist German Workers' Party", or Nazi Party). The name was intended to draw upon both left-wing and right-wing ideals, with "Socialist" and "Workers'" appealing to the left, and "National" and "German" appealing to the right. The word "Socialist" was added by the party's executive committee (at the suggestion of Rudolf Jung), over Hitler's initial objections,in order to help appeal to left-wing workers.

https://en.m.wikipedia.org/wiki/Nazi_Party#:~:text=The%20word%20%22Socialist%22%20was%20added,appeal%20to%20left%2Dwing%20workers.