The study of the language of religious minorities in Iran is particularly important for understanding the historical development and typology of Iranian languages. Historical and linguistic evidence substantiates the idea that Zoroastrians and Jews in cities in central and western Iran preserved their former vernacular language, whereas the majority of the population replaced it with Persian in the New Iranian period. This paper focuses on the language of Jews in Hamadan and has two main objectives: first, it examines numerous distinctive features of Judeo-Hamadani; second, it reviews and updates recent research to clarify the language origins, using data from new materials recorded during fieldwork in Hamadan from October 2018 to August 2019, and in Yazd in 2017.
