Mid 19th century. In some forms from French Adjar a native of Adjara and its etymon Russian adžar from the base of Georgian Ač'ara, the name of Adjara, Ač'areli (noun) a native of Adjara, (as adjective, only of people) belonging or relating to Adjara. In some forms directly from Georgian Ač'ara. With use as adjective compare Russian adžarskij.