Akawaio
/ˌakəˈweɪəʊ/noun
1A member of a Carib people inhabiting parts of Guyana, especially in the upper Mazaruni river region.
2The Carib language of the Akawaio.
adjective
Of, relating to, or designating the Akawaio or their language.
Origin
Mid 18th century; earliest use found in Edward Bancroft (1744–1821), chemist and spy. Apparently ultimately from Akawaio kawai tobacco juice, potion drunk by shamans. With the some forms compare Spanish akawaio, akawoio.