The Tamil languages are the group of Dravidian languages most closely related to Tamil. In addition to Tamil itself, they are: Irula, Betta Kurumba, Yerukala, Eravallan, Kanikkaran, Muthuvan, Sholaga, Kaikadi, Sankethi, Eezhavam, Jaffnese Arwi is not a separate language but a register of Tamil used by Muslims. It is written in the Arabic alphabet and contains many loans from Arabic. Kakkala may be either a Tamil language or one of the Malayalam languages. Internal classification Glottolog classifies the Malayalam languages as follows: References