Eipo belongs to the Eastern branch of Mek languages, which is a family of closely related languages belonging to the larger grouping of Trans-New Guinea languages.
The Eipo language is spoken by about 3,000 people along the Eipo River in the valley of Eipomek, which is situated in the eastern highlands of Highland Papua.[1]
Eipo has only four basic spatial deictics, which are usually accompanied by pointing gestures, since the deictics are used during face-to-face communication to refer to positions relative to the person.[5]: 119
Eipo is not historically a written language, but in recent decades a Latin alphabet has been devised for it. The letter values are mostly those of the IPA letters given above, with the exceptions of /β/⟨w⟩, /ŋ/⟨ng⟩, /ɾ/⟨r⟩, and /j/⟨y⟩.
^ abPawley, Andrew; Hammarström, Harald (2018). "The Trans New Guinea family". In Palmer, Bill (ed.). The Languages and Linguistics of the New Guinea Area: A Comprehensive Guide. The World of Linguistics. Vol. 4. Berlin: De Gruyter Mouton. pp. 21–196. ISBN978-3-11-028642-7.
Heeschen, Volker (1998). An Ethnographic Grammar of the Eipo Language (spoken in the central mountains of Irian Jaya (West New Guinea), Indonesia). Berlin: Reimer.
Heeschen, Volker and Wulf Schiefenhövel. 1983. Wörterbuch der Eiposprache: Eipo-Deutsch-Englisch. Berlin: Dietrich Reimer.