*Assistant Professor, Faculty of History, Tehran Central Branch, Islamic Azad University, Iran
**The bachelor of Science Student of History field in Islamic Azad University, Central Tehran Branch
Mongolian language is the language of a part of QipcaqPlateau, which later with Changiz khan's reign and strengthening of these peoples, Mongol name generalized by tribes of under attack territories, to all people with Turkish language. With reign of Changiz and it's successors, the high number of Turk tribes permeate in the Mongol military and gradually cause to prevail the majority language(Turkish) on minority (Mongol), and gradually influence on culture and tongue of conquered territories. One of significant example of these effects is Azerbaijan, which the invasion of Turk and Mongol people and their domination on government and ministries lead to gradually replace the ancient Azerbaijani language by invader's counterpart. In this paper we try to consider the piecemeal entrance of Mongol vocabulary and piecemeal replacement of Turkish vocabulary with it's counterpart in Iran and Azerbaijan.
Mongols, Azerbaijan, Mongol/Turkish language, Azeri language
