Nadahup

Nadahup is a small family of about four languages spoken across the Amazon regions of Brazil, Colombia and Venezuela, formerly and still sometimes known as Maku, a pejorative Arawakan-derived name meaning without speech; Nadahup is instead an acronym built from its constituent languages. The family comprises three branches, Nadeb-Kuyawi, Daw and Hupda-Yuhup, though several of its named languages, including Nadeb and Kuyawi, Hup and Yahup, and Nukak and Kakwa, share about 90 percent of their vocabulary and are mutually intelligible, making them separate languages in only a sociolinguistic rather than a strictly linguistic sense. Nadahup is counted among the world's primary language families.