Waitaká language

{{Short description|Extinct unclassified language of Brazil}}

{{Expand language|topic=|langcode=pt|otherarticle=Língua goitacá|date=April 2025}}

{{Infobox language

| name = Waitaká

| nativename = Goytacaz

| states = Brazil

| ethnicity = Goitacá

| extinct = by 18th century

| familycolor = american

| iso3 = none

| linglist = 4x0

| glotto = none

| fam1 = Purian ?

| map = Presença_indígena_na_costa,_século_XVI,_Brasil.jpg

| mapcaption = {{legend|#48a845|Goytacaz}}

| region = Rio de Janeiro

| acceptance = unattested

}}

Waitaká (Guaitacá, Goyatacá, Goytacaz) is an extinct language of Brazil,{{cite book |last=Campbell |first=Lyle |authorlink=Lyle Campbell |editor1-last=Grondona |editor1-first=Verónica |editor2-last=Campbell |editor2-first=Lyle |date=2012 |title=The Indigenous Languages of South America |chapter=Classification of the indigenous languages of South America |series=The World of Linguistics |volume=2 |location=Berlin |publisher=De Gruyter Mouton |pages=59–166 |isbn=978-3-11-025513-3}} on the São Mateus River and near Cabo de São Tomé in the state of Rio de Janeiro. Not a word of it is known. Dialects, or at least tribal divisions, were Mopi, Yacorito, Wasu, and Miri.{{cite book |last=Mason |first=John Alden |authorlink=John Alden Mason |date=1950 |chapter=The languages of South America |editor-first1=Julian |editor-last1=Steward |title=Handbook of South American Indians |volume=6 |pages=157–317 |publisher=Smithsonian Institution, Bureau of American Ethnology Bulletin 143 |location=Washington, D.C., Government Printing Office}} Loukotka (1968) suggests it may have been one of the Purian languages,{{cite book |last=Loukotka |first=Čestmír |authorlink=Čestmír Loukotka |title=Classification of South American Indian languages |url=https://archive.org/details/classificationof0007louk |url-access=registration |publisher=UCLA Latin American Center |year=1968 |location=Los Angeles}} though others consider this classification "circumstantial".