Lubu is a

Malayic language The Malayic languages are a branch of the Malayo-Polynesian subgroup of the Austronesian language family. The two most prominent members of this branch are Indonesian and Malay. Indonesian is the official language of Indonesia and has evolved ...

spoken by the Lubu people on the island of

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

in Indonesia. It is surrounded by speakers of

Batak Mandailing Mandailing Batak or Mandailing is an Austronesian language spoken in Sumatra, the northern island of Indonesia. It is spoken mainly in Mandailing Natal Regency, North Padang Lawas Regency, Padang Lawas Regency, and eastern parts of Labuha ...

References

Languages of Indonesia Malayic languages {{malayic-lang-stub