What is "chakobsa"

Chakobsa is a Caucasian hunting language (possibly dead) from the region of modern Dagestan.

Chakobsa is a fictional language used by the Fremen people of the Dune universe created by Frank Herbert. In the series of novels which begins with Dune, the language is said to be based on another fictitious language, the Bhotani Jib (likely derived from Bhutan and referring to a dialect derived from there). Herbert presumably took the name from Chakobsa, the "hunting language" of the Caucasus (cf. Lesley Blanch, The Sabres of Paradise (1960), p. 21), an anglicized form of Adyghe щакIуэбзэ /šak'e-bze/ "hunter's language" (щакIуэ 'hunter,' бзэ 'language').

Examples of the language from the books are actually a mixture of Roma (or gypsy) language, from a gypsy magic textbook Herbert used for reference, one sentence in Serbo-Croat and various Arabic terms, with definitions altered slightly to suggest the passage of time.