'crh-cyrl' => "\xE2\x80\xAAКъырымтатарджа (Кирилл)\xE2\x80\xAC", # Crimean Tatar (Cyrillic)
'cs' => 'Česky', # Czech
'csb' => 'Kaszëbsczi', # Cassubian
- 'cu' => 'Словѣньскъ', # Old Church Slavonic (ancient language)
+ 'cu' => 'Словѣ́ньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ', # Old Church Slavonic (ancient language)
'cv' => 'Чăвашла', # Chuvash
'cy' => 'Cymraeg', # Welsh
'da' => 'Dansk', # Danish