'co' => 'Corsu', # Corsican
'cr' => 'Nehiyaw', # Cree
'cs' => 'Česky', # Czech
- 'csb' => 'Kaszëbscziej', # Cassubian, should possibly be Kaszëbsczi
+ 'csb' => 'Kaszëbsczi', # Cassubian
'cv' => 'Чӑваш', # Chuvash
'cy' => 'Cymraeg', # Welsh
'da' => 'Dansk', # Danish