Wikipedia
The Yeraz people, sometimes called Yer-az or Yerazi, are an Azerbaijani sub-group, also referred to as a clan, consisting of Azeris originally from present-day Armenia. The term Yeraz in the Azeri language derives from "Azeri from Yerevan", and used even if the person does not hail from the city of Yerevan itself.
Due to longtime historic tensions between neighboring Armenia and Azerbaijan, virtually all the Yeraz have left Armenia for Azerbaijan and other countries before tensions exploded with the Nagorno-Karabakh War. Because they developed with some different customs and cuisine from Azeris in Azerbaijan, the Yerazi have maintained a cohesive sub-culture within the country. Due to tension and cultural differences between Azeris from Azerbaijan and Azeris from Armenia, the term "Yeraz" can be construed as a pejorative.