Chechens
The main language of the Chechen people is Chechen. Chechen belongs to the family of Nakh languages (Northeast Caucasian languages). Literary Chechen is based on the central lowland dialect. Other related languages include Ingush, which has speakers in the neighbouring Ingushetia, and Batsbi, which is the language of the people in the adjoining part of Georgia. At various times in their history, Chechens used Georgian, Arabic and Latin alphabets; as of 2008, the official one is now the Cyrillic script of Russia.
Name of the Czech Republic
The current English ethnonym "Czech" comes from the Polish ethnonym associated with the area, which ultimately comes from the Czech word "Čech". The words "Czechian", "Czechish", "Czechic" and later "Czech" (using antiquated Czech spelling) have appeared in English-language texts since the 17th century. During the 19th-century national revival, the word "Czech" was also used to distinguish between the Czech- and German-speaking peoples living in the country. The term "Czechia" is attested as early as 1569 in Latin and 1841 in English ("Poselkynie starych Przjbiehuw Czeskych – Messenger of the old Fates of Czechia"). There were other early mentions in 1856 and in an 1866 report on the Austro-Prussian War.