an Entity references as follows:
Kwadi /ˈkwɑːdi/ was a "click language" once spoken in the southwest corner of Angola. It went extinct some time around 1960. There were only fifty Kwadi in the 1950s, of whom only 4–5 were competent speakers of the language. Three partial speakers were known in 1965, but in 1981 no speakers could be found. Kwadi was alternatively known by varieties of the words Koroka (Ba-koroka, Curoca, Ma-koroko, Mu-coroca) and Cuanhoca.