Language of Betawi

Mixed nature of the Betawi dialect is a reflection of the Betawi culture in general, which is the result of mating a variety of cultures, both originating from other areas in the archipelago as well as foreign cultures.
There is also an opinion that the tribes who inhabited the area around Batavia Batavian tribe also classified as early (proto Betawi). Historically, the Kingdom Tarumanagara, based in Sundapura or Sunda Kalapa, had been attacked and conquered by the kingdom of Srivijaya of Sumatra. Therefore, do not be surprised if at the port of Sunda Sundanese ethnic Kalapa, long before the Youth Pledge, already use the Malay language, which is commonly used in Sumatra, which then serve as the national language.
Because of these differences, the language used in the early 20th century, Dutch treat those living around Batavia as different ethnic and call it ethnic Sundanese ethnic Betawi (a word derived from Batavia). However, there are many local names and river names which are preserved in the Sundanese language such as word Ancol, Jewel, Cilandak, Ciliwung, Cideng (which comes from Cihideung and then turned into Cideung and tearkhir be Cideng), and others are still in accordance with the naming described in ancient texts Bujangga Beads which is currently stored in the Bodleian Library, Oxford, England.
Although the formal language used in Jakarta is Indonesian, the language of informal or colloquial language is Indonesian Betawi dialect.