teortiskaj
Teortiskaj is a constructed language created by the Esperantist and linguist Georges Lagrange. The language was first documented in 1980. Lagrange developed teortiskaj with the intention of creating a language that would be both easy to learn and express complex scientific and philosophical ideas. The vocabulary of teortiskaj is largely based on Indo-European roots, particularly those found in Romance and Germanic languages, but it also incorporates elements from other language families to enhance its logical structure and expressive potential.
The grammar of teortiskaj is designed to be highly regular and analytical. It features a consistent system
Teortiskaj has not achieved widespread adoption but has a small but dedicated community of speakers and learners.