# Chakobsa (Dune)
**Chakobsa** is a fictional language in [Frank Herbert](https://www.edgepedia.org/frank-herbert)'s *Dune* universe, presented as the secret tongue of the Fremen of Arrakis and, in the novels, also used as a battle language by House Atreides. The name is borrowed from a real Caucasian hunting language once used as a secret register by Circassian nobility, but the language Herbert actually put on the page is a mixture of Romani, Serbo-Croatian, and Arabic rather than anything Caucasian.[1](https://www.washingtonpost.com/outlook/2021/10/28/dune-muslim-influences-erased/) • [2](https://www.kveliere.com/essays/2023-05-27-the_hunting_tongue-pt1.html) • [3](https://dune.fandom.com/wiki/Chakobsa) For Denis Villeneuve's film adaptations, the linguist David J. Peterson built Chakobsa into a fully functional constructed language with its own grammar, vocabulary, and script.[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) • [5](https://lareviewofbooks.org/article/power-over-spice-is-power-over-all-extractivism-and-indigenous-knowledge-in-frank-herberts-dune/)
| Key fact | Detail |
|---|---|
| First appearance | *Dune* (1965); the name appears in the novel's Terminology of the Imperium appendix[6](https://dunepedia.com/wiki/terim-cakobsa/) |
| Real-world namesake | Chakobsa, a secret hunting language of Circassian nobility, sometimes called "The Hunting Tongue"[2](https://www.kveliere.com/essays/2023-05-27-the_hunting_tongue-pt1.html) |
| Herbert's sources | Colloquial Arabic, chosen because he reasoned it "would be likely to survive for centuries in a desert environment," modified through what he called an "elision process"[1](https://www.washingtonpost.com/outlook/2021/10/28/dune-muslim-influences-erased/) |
| Actual sample composition | A mixture of Romani, Serbo-Croatian, and Arabic[3](https://dune.fandom.com/wiki/Chakobsa) |
| In-universe function | Secret language of the Fremen and a coded battle language of House Atreides[3](https://dune.fandom.com/wiki/Chakobsa) |
| Film version | "Neo-Chakobsa," a full conlang created by David J. Peterson (with Jessie Peterson on the second film), the most frequently heard fictional language in the 2021 film[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) • [7](https://dune.fandom.com/wiki/%22Neo-Chakobsa%22_%282020s_film_series%29) |
## In Herbert's novels
Herbert gave the Fremen, descendants of Muslim Arabs in his far future, a speech that carries that heritage openly. The novel uses at least eighty terms of clear Arabic origin, many tied to Islam, including *istislah* (natural law), *ilm* (theology), *karama* (miracle), and *ijaz* (prophecy), and the Fremen quote the *Kitab al-Ibar*, an allusion to the world history of the fourteenth-century Arab historian [Ibn Khaldun](https://www.edgepedia.org/ibn-khaldun).[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) The most famous line of Fremen speech, "Long live the fighters," is written in the book as "Ya hya chouhada," a reference to a celebratory chant from the Algerian war of independence, rendered by Herbert in Frenchified Arabic.[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages)
**How Herbert built it.** According to his son Brian's biography *Dreamer of Dune*, Herbert mixed colloquial Arabic into the Fremen language because he judged it likely to survive for centuries in a desert environment, and he applied an "elision process" that modified Arabic roots to show how languages change over time. He used Arabic throughout his universe, within and beyond Fremen culture.[1](https://www.washingtonpost.com/outlook/2021/10/28/dune-muslim-influences-erased/) Screenwriter Jon Spaihts, who adapted the novel with [Denis Villeneuve](https://www.edgepedia.org/denis-villeneuve), described Herbert's Chakobsa as an invented pidgin filled with Arabic loan words that Herbert mutated because the story sits ten thousand years in a scattered human future.[8](https://www.wgaeast.org/onwriting/episode-62-jon-spaihts-and-denis-villeneuve-dune/)
The novels never develop Chakobsa into a speakable system. Herbert's text supplies only a handful of words and phrases, not enough to use reliably in dialogue for the films.[9](https://www.slashfilm.com/1552218/dune-fremen-language-chakobsa-how-many-words/) In the story, the language also marks belonging: it is associated with the Fremen and with other traditions that share their heritage, and [Lady Jessica](https://www.edgepedia.org/lady-jessica)'s knowledge of Chakobsa, distinct from the everyday Fremen tongue, is a plot point.[6](https://dunepedia.com/wiki/terim-cakobsa/) The non-canonical *Dune Encyclopedia* (1984) extrapolated the word's history, proposing that by around the year 6000 *chakobsa* had commonized to mean "any secret language, especially for military purposes."[10](https://gwern.net/doc/fiction/science-fiction/frank-herbert/1984-mcnelly-theduneencyclopedia.pdf)
## The real Chakobsa
The name Herbert borrowed refers to a genuine but poorly documented register: a secret language used by Circassian nobility, often called "The Hunting Tongue," about which little is known.[2](https://www.kveliere.com/essays/2023-05-27-the_hunting_tongue-pt1.html) Commentators have suggested that Herbert may also have drawn his Fremen's Caucasian-flavored warrior culture from sources on the Islamic Caucasus, but the linguistic samples he printed come from Romani, Serbo-Croatian, and Arabic, not from the historical language.[3](https://dune.fandom.com/wiki/Chakobsa)
## Neo-Chakobsa in the films
For the 2021 *Dune* and *Dune: Part Two*, Denis Villeneuve commissioned David J. Peterson, a linguist and conlanger known for Dothraki and High Valyrian on *Game of Thrones*, to build the Fremen language into something actors could actually speak. Peterson worked alone on the first film and with his wife, the conlanger Jessie Peterson, on the second.[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) The result, called "Neo-Chakobsa" by fans, is the most frequently heard fictional language in the 2021 film and the best documented of the languages created for the series; it takes Herbert's few samples as a starting point and adds newly devised grammar.[7](https://dune.fandom.com/wiki/%22Neo-Chakobsa%22_%282020s_film_series%29) Peterson chose an a-priori approach, meaning vocabulary and grammar are wholly original rather than derived from an existing language, with the book's terms treated as minimal constraints.[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) The films also gave the language a written form in quasi-Arabic-looking characters, and the screenplays mark Fremen dialogue as Chakobsa throughout.[5](https://lareviewofbooks.org/article/power-over-spice-is-power-over-all-extractivism-and-indigenous-knowledge-in-frank-herberts-dune/) • [11](https://assets.scriptslug.com/live/pdf/scripts/dune-2021.pdf?v=1729114900)
## The Arabic question
Peterson's version retains a vaguely Arabic sound but strips out almost all recognizable Arabic, and this choice has drawn criticism. Peterson defended it on grounds of believability: at the roughly twenty-thousand-year time depth of the story, he argued, no shred of a modern language should survive, citing how *Beowulf*, about a thousand years old, is uninterpretable to most modern English speakers. Terms such as *shai-hulud* and *Lisan al-Gaib* do appear in the films, but within his conlang they are treated as coincidental convergences rather than ancient holdovers.[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) Critics, including scholars of Islamic history, counter that the erasure discards the novel's identification of the Fremen with Arab and Muslim heritage and its anti-imperialist resonances, and the Washington Post's review called the film's language choices both more Orientalist and less daring than the novel's.[1](https://www.washingtonpost.com/outlook/2021/10/28/dune-muslim-influences-erased/) • [4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages) The two positions reflect different theories of world-building: Herbert wanted fragments of the reader's own world carried into the far future, while Peterson prioritizes internal linguistic coherence.[4](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages)
## References
1. [Herbert's 'Dune' had deep Muslim influences. Villeneuve's movie erases them. (The Washington Post, 2021)](https://www.washingtonpost.com/outlook/2021/10/28/dune-muslim-influences-erased/)
2. [Kvelíere: The Hunting Tongue (2023)](https://www.kveliere.com/essays/2023-05-27-the_hunting_tongue-pt1.html)
3. [Chakobsa, Dune Wiki (Fandom)](https://dune.fandom.com/wiki/Chakobsa)
4. ["Dune" and the Delicate Art of Making Fictional Languages (The New Yorker, 2024)](https://www.newyorker.com/culture/cultural-comment/dune-and-the-delicate-art-of-making-fictional-languages)
5. [Power over Spice Is Power over All (Los Angeles Review of Books)](https://lareviewofbooks.org/article/power-over-spice-is-power-over-all-extractivism-and-indigenous-knowledge-in-frank-herberts-dune/)
6. [Chakobsa, Dunepedia](https://dunepedia.com/wiki/terim-cakobsa/)
7. ["Neo-Chakobsa" (2020s film series), Dune Wiki (Fandom)](https://dune.fandom.com/wiki/%22Neo-Chakobsa%22_%282020s_film_series%29)
8. [Episode 62: Jon Spaihts and Denis Villeneuve, "Dune" (OnWriting, Writers Guild of America East)](https://www.wgaeast.org/onwriting/episode-62-jon-spaihts-and-denis-villeneuve-dune/)
9. [How Many Words Really Make Up The Dune Movies' Fictional Fremen Language (SlashFilm)](https://www.slashfilm.com/1552218/dune-fremen-language-chakobsa-how-many-words/)
10. [The Dune Encyclopedia (1984)](https://gwern.net/doc/fiction/science-fiction/frank-herbert/1984-mcnelly-theduneencyclopedia.pdf)
11. [Dune (2021) shooting script](https://assets.scriptslug.com/live/pdf/scripts/dune-2021.pdf?v=1729114900)
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*Topic: Encyclopedia › Society and history › Languages and linguistics › Languages and dialects › Named languages by region › Named languages overview*
*Initially written Sep 17, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 11, 2026; Oct 15, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license