Kustenau language
{{Short description|Extinct Arawakan language of Brazil}}
{{Infobox language
| name = Kustenaú
| states = Brazil
| region = Mato Grosso
| extinct = late 20th century
| date =
| familycolor = arawakan
| fam1 = Arawakan
| fam2 = Southern ?
| fam3 = Paresí–Xingu
| fam4 = Waurá
| map2 = Lang Status 01-EX.svg
| iso3 = none
| linglist = qbp
| glotto = kust1238
| glottorefname = Kustenau
| altname = Kustenau
| ethnicity = {{ill|Custenau people|hr|Custenau}}
}}
Kustenau (Kustenaú) is an extinct Arawakan language of Brazil.
Phonology
= Vowels =
Kustenau has the vowels /i, e, ɨ, u, a/.
= Consonants =
Vocabulary
Unless specified, stress always falls on the penultimate syllable.{{Cite book |last=von den Steinen |first=Karl |url=https://etnolinguistica.wdfiles.com/local--files/biblio%3Asteinen-1894-unter-den-naturvolkern/unterdennaturv00stei.pdf |title=Unter den Naturvölkern Zentral-Brasiliens |date=1894 |publisher=Hoefer & Vohlsen |pages=529–530}}
class="wikitable"
|+Kustenau vocabulary !Gloss !Kustenau |
tongue
|nunéi |
tooth
|nutévoe |
mouth
|nukanati |