What is "nefamese"

Nefamese (also Arunamese) is a nearly extinct pidgin of Arunachal Pradesh (formerly NEFA), India. Its classification is unclear; Ethnologue states that it is based on the Indic language Assamese, but also that it is most closely related to the Sino-Tibetan Gallong. It has also been influenced by Hindi and English.

Nefamese emerged in eastern Arunachal Pradesh as a lingua franca among the Nishi, Adi, Apatanai, Khampti, Hill Miri, Idu Mishimi, Nocte, Wanchu, Tagin, Mompa, Zakhring, Apatani, and Bugun peoples, among others—between them and with outsiders. The language is threatened by, and has perhaps been replaced by, the use of Hindi.