Land Dayak (not a unit)
A 2008 analysis of the Austronesian Basic Vocabulary Database found marginal support (at a 65% confidence level) that these languages are related as an exclusive unit. There was in addition 55% support for the unity of a core group, excluding the Sabahan languages, that is called "Greater Barito":
- Sabahan (at least Murutic and Ida’an)
- Greater Barito (55%)
The Rejang–Sajau languages are presumably Bornean, but were not addressed by the 2008 study.
 North Bornean
North Bornean is a 1991 proposal by Robert Blust that the Northeast Sabahan, Southwest Sabahan, and North Sarawakan families (minus Kayan) form an exclusive unit called North Bornean. The Bornean languages, which do not form a unit in this proposal, thus consist of North Bornean, Kayan, Land Dayak, and the three Barito families.
North Bornean is not supported by the 2008 analysis.
 See also
- Blust, Robert. "The Greater North Borneo Hypothesis." Oceanic Linguistics 49.1 (2010): 44-118.
- Fay Wouk and Malcolm Ross (ed.), The history and typology of western Austronesian voice systems. Australian National University, 2002.
- K. Alexander Adelaar and Nikolaus Himmelmann, The Austronesian languages of Asia and Madagascar. Routledge, 2005.
- Austronesian Basic Vocabulary Database
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