A movement advocating for the purification of the Persian language by removing Arabic loanwords has gained traction among Iranian nationalists and diaspora groups. This linguistic campaign seeks to replace Arabic-derived vocabulary with terms rooted in ancient Persian, particularly from the Sasanian era, as a symbolic effort to revive pre-Islamic Iranian identity and distance the culture from historical Arab political and religious influence.

Proponents of the movement, including the so-called Parsig groups active on social media, promote the use of classical Persian alternatives to common Arabic expressions. For example, they encourage replacing traditional greetings like "salam" with the Persian "darud." Although many of these alternatives were present in Classical Persian, their usage has diminished over centuries due to the widespread incorporation of Arabic words following the Islamic conquest of Persia.

Despite these efforts, Arabic vocabulary remains deeply entrenched in everyday Iranian language and communication. Within Iran, the movement is most visible in nationalist literature, select media outlets, and among diaspora activists. Meanwhile, critics within the country argue that the relationship between Persian and Arabic has been mutually influential and profound over time, with Arabic words becoming an integral part of Persian just as Persian has shaped Arabic vocabulary. They note that institutions like the Pahlavi Cultural Institute historically preferred promoting Persian origins but did not seek to fully expunge Arabic terms, focusing instead on curbing European loanwords.

This language-purification campaign reflects broader cultural and political debates tied to Iranian nationalism and identity. The movement is seen by some analysts as an extension of political efforts aiming to symbolically reject Arab and Islamic dominance, even as Iran’s official ideology remains deeply intertwined with Shiite Islam.

The intersection of linguistic nationalism and religion is further complicated by Iran’s ideological ambitions rooted in Twelver Shiism. Central to this belief system is the doctrine concerning the twelfth Imam, Muhammad ibn al-Hasan al-Askari, who Twelver Shiites hold is in occultation and will one day return as the Mahdi to establish justice and defeat the enemies of Islam. This religious narrative has historically been a source of motivation in Iran, including during the Safavid era, and continues to underpin the legitimacy of the Islamic Republic.

Iran’s current regime legitimizes its authority in part through the doctrine of Guardianship of the Islamic Jurist (Velayat-e Faqih), asserting stewardship until the Mahdi’s prophesied return. This belief shapes domestic and foreign policy, including support for Shiite minorities and involvement in regional conflicts, often justified as part of a broader revolutionary and religious mission.

While Iranian political ambitions have led to confrontations with the United States and Israel, the regime frames external hostility as justification for its regional posture and ideological objectives. The anticipation of the Mahdi’s return also penetrates public discourse, with some interpreting geopolitical developments as signs of its imminence. Observers suggest that these beliefs could strengthen if external threats diminish or weaken should the regime face significant decline.