The Dune Encyclopedia This article or section refers to elements that appear exclusively in The Dune Encyclopedia. Farsi was an ancient Terran language. It was a major language of the Isfahan-e nou area of Poritrin. Defa 'l-Fanini postulated a Farsi substratum in the term al-gaib in the Fremen language. It became extinct around 7500 BG Retrieved from "https://dune.fandom.com/wiki/Farsi?oldid=13446" Categories: Dune Encyclopedia Languages Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.