A language of Papua New Guinea

Alternate Names
Kasiwa, Kativa, Ningerum, Ninggirum, Ninggrum, Niyium, Obgwo, Tedi, Tidi

5,150 in Papua New Guinea (2000 census). 2,060 monolinguals. Total users in all countries: 6,150.


Western province: between Ok Birim and Ok Tedi rivers, east of Ok Tedi to main road linking Kiunga and Tabubil, and north to the main mountain range.

Language Status

5 (Developing).


Kasuwa, Daupka.

Language Use

Vigorous. All domains. Used by all. Positive attitudes. Many also use Tok Pisin [tpi]. Some also use Hiri Motu [hmo]. A few also use English [eng]. Also use Faiwol [fai], Telefol [tlf], Yongkom [yon].

Language Development

Literacy rate in L1: 5%. Literacy rate in L2: 5%–15%. Taught in primary schools.


Latin script [Latn].

Other Comments

About half the population died 1950–1975 from western diseases. Traditional religion, Christian.

Also spoken in:

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