Central and South New Guinea languages

Central and South New Guinea
Asmat–Ok
Geographic distribution	New Guinea
Linguistic classification	Trans–New Guinea Central and South New Guinea
Subdivisions	Asmat–Kamoro Greater Awyu Mombum Ok–Oksapmin Bayono-Awbono? Somahai?
Glottolog	cent2116
Map: The Central and South New Guinea languages of New Guinea   The Central and South New Guinea languages   Other Trans–New Guinea languages   Other Papuan languages   Austronesian languages   Uninhabited

The Central and South New Guinea languages (CSNG) are a proposed family of Trans–New Guinea languages (TNG). They were part of Voorhoeve & McElhanon's original TNG proposal, but have been reduced in scope by half (nine families to four) in the classification of Malcolm Ross. According to Ross, it is not clear if the pronoun similarities between the four remaining branches of Central and South New Guinea are retentions for proto-TNG forms or shared innovations defining a single branch of TNG. Voorhoeve argues independently for an Awyu–Ok relationship, and Foley echoes that Asmat may be closest to Awyu and Ok of the TNG languages. Regardless, the four individual branches of reduced Central and South New Guinea are themselves clearly valid families.

• Central and South New Guinea (Asmat–Ok)
  • Asmat–Kamoro family [a recent expansion along the south coast]
  • Greater Awyu family
  • Mombum family
  • Ok–Oksapmin family

Ethnologue (2009) retains only Awyu–Dumut and Ok, calling the branch Ok–Awyu, and places Asmat and Mombum as independent branches of TNG. Loughnane & Fedden (2011) link Ok to the Oksapmin language.^[1] However, van den Heuvel & Fedden (2014) argue that Greater Awyu and Greater Ok are not genetically related, but that their similarities are due to intensive contact.^[2]

The Somahai languages and Bayono-Awbono may also belong here, but there is little data to go on.