Starting from the Middle Ages[clarification needed], the term Tati was used not only for the Caucasus but also for northwestern Iran, where it was extended to almost all of the local Iranian languages except Persian and Kurdish.[citation needed]
Currently, the term Tati and Tati language is used to refer to a particular group of north-western Iranian dialects (Chali, Danesfani, Hiaraji, Hoznini, Esfarvarini, Takestani, Sagzabadi, Ebrahimabadi, Eshtehardi, Hoini, Kajali, Shahroudi, Harzani) in Iranian Azerbaijan, as well as south of it in the provinces of Qazvin and Zanjan.[6] These dialects have a certain affinity to the Talysh language, Mazanderani language and are descendants of the Old Azari language.[7]
^Paul, Ludwig (1998a). The position of Zazaki among West Iranian languages. In Proceedings of the 3rd European Conference of Iranian Studies, 11-15.09.1995, Cambridge, Nicholas Sims-Williams (ed.), 163-176. Wiesbaden: Reichert.
^Andrew Dalby, Dictionary of Languages: the definitive reference to more than 400 languages, Columbia University Press, 2004, pg 496.
^"Azari, the Old Iranian Language of Azerbaijan," Encyclopaedia Iranica, op. cit., Vol. III/2, 1987 by E. Yarshater. External link: [1]