Socio-political terms exist in all world languages and are directly related to the socio-political structure of each country. The words related to statehood, religion and political system were mentioned in sources associated with the ancient period of Persian and Azerbaijani languages. In the article, among such sources, "The Book of Dede-Gorgud", Orkhon-Yenisei" on Turkic languages, and the samples selected from the work "Shahnameh" on Persian are analyzed by the historical-comparative method. When studying terms related to religion, it should be investigated in more detail whether these terms correctly reflect events in the socio-political life of the country they belong to, as they are subject to purposeful interventions in several cases. Considering Manichaean, Islam, Sufism and other religious directions, which are thought to be related to Zoroastrianism and Zoroastrianism in Iran, this picture is further complicated. In the article, medieval Persian dictionaries were also reviewed among the sources related to the Middle Ages. It was noted that words related to almost all areas of social life are included in them. The social and political situation after the Iranian Islamic Revolution and the terms that were created in connection with this situation is considered in the history of Iran. The article also contains information about using borrowed words in both languages' social and political fields. Then the place of the terms in the form of abbreviations in the speech was analyzed. In the article, the data gives grounds to say that as a result of any historical event, the most profitable sphere is linguistics. So, although the changes in other areas cause stagnation and decline in some instances, linguistics is enriched with new words. Political linguistics is also included, and the rising line of political discourse during World War I can serve as an example.