L1 users: 2,500 (2011 SIL), decreasing.
Kosi zone: Dhankuta district, Bhedetar, Bodhe, Mounabudhuk, and Rajarani; north Sankhuwasabha district, Devitar and Matsya Pokhari, between the Jaruwakhola east and the Raghuwkhola west.
6b (Threatened). Language of recognized indigenous nationality: Rai.
Gessa, Yamphe (Newahang Yamphe, Yakkhaba, Yakkhaba Khap, Yamphe Kha). 61% intelligibility of Lohorung [lbr], 43%–58% (depending on site) intelligibility of Yamphu [ybi]. A Rai group, most closely related to Yamphu [ybi], but distinct in grammar and phonology (Hansson 1991). Lexical similarity: 84%–89% between Southern Yamphu varieties, 74%–83% with Yamphu [ybi], 65%–68% with Lohorung [lbr].
SOV; postpositions; verbal affixation marks person and number; tense; nontonal.
Home, religion, work; mixed use: Friends. Young adults and older. Some use among children and adolescents. Positive attitudes.
Speakers of the language identify themselves ethnically as ‘Yamphu’. Hansson (1991) described this group as two separate languages, “Yamphu” and “Southern Lorung” (cf. Ethnologue, 16th edition and earlier). Traditional religion, Christian, Hindu.