Jagoi, Singai or Bau, is a Dayak language of Borneo. Gumbang dialect may be closer to Tringgus.
Dialects
Bau language is divided into seven dialects, namely:
Jagoi - notably from Serikin, Stass, Serasot etc., towards Kampung Selampit in Lundu, Sarawak, Bratak - used in kupua (kampung/villages) around the Bung Bratak (Bratak Hill), Singai - used in the area and villages around the Catholic site of Mount Singai (from Kampung Apar towards kampung Bobak), Biroih - used from Kampung Skiat area towards Kampung Seropak and towards Peninjau Lama (Serumbu area) who originated from Mount Podam, Krokuang/Krokong - used in the Krokong area in Bau, Sarawak, Gumbang - in Gumbang area, and Tringgus - in Kampung Tringgus.
References