Tsolyáni was the only Tékumeláni language that had a full grammar book, dictionary, pronunciation tapes (now on CD) and a primer, all publicly released. Yet, it was not the only language Barker developed for his imaginary world. He also wrote grammar guides and partial vocabularies for several other languages he developed for it: Yán Koryáni, Livyáni, Engsvanyáli and Sunúz. In the world of Tékumel, the first two are the languages of the modern nations of Yán Kór and Livyánu, respectively. Engsvanyáli is a dead language, an ancestor of Tsolyáni and many other modern Tékumeláni languages; knowledge of it is considered prestigious, and it is used in literary, liturgical, sorcerous, and scholarly contexts. Sunúz is an obscure language, used for sorcerous purposes; it contains terms to describe movement in a supposed six-dimensional multi-planar space, something of use to the fictional beings who visit the other planar realms where demons live.