Sorbian languages
The Polish alphabet was one of two major forms of Latin-based orthography developed for Slavic languages, the other being Czech orthography, characterized by carons (háčeks), as in the letter "č". The other major Slavic languages which are now written in Latin-based alphabets (Slovak, Slovene, and Serbo-Croatian) use systems similar to the Czech. However a Polish-based orthography is used for Kashubian and usually for Silesian, while the Sorbian languages use elements of both systems.