found: Work cat.: Moses, T.W. Kuk buk, 1997.
found: Dickson, P. Labels for locals, 2006(Vanuatu: Ni-Vanuatu (both singular and plural), which is also an adjective)
found: CIA The world factbook, via WWW, Dec. 7, 2011:Vanuatu (Nationality: noun: Ni-Vanuatu (singular and plural), adjective: Ni-Vanuatu)
found: Wikipedia, Dec. 7, 2011:Vanuatu (Demonym: Ni-Vanuatu; Vanuatuan; the inhabitants of Vanuatu, or Ni-Vanuatu) Ni-Vanuatu (Ni-Vanuatu is a demonym used to refer to all Melanesian ethnicities originating in Vanuatu. It also refers, more generally, to nationals and citizens of Vanuatu, whatever their ethnicity. NiVan is a commonly used abbreviation of ni-Vanuatu, which comes from the French née Vanuatu, meaning a citizen of (or otherwise someone that shares a sense of belonging with) the Republic of Vanuatu)