Paratió language
Paratió (also called Prakió) is an extinct and poorly attested language of Brazil. It appears to have been related to Xukuru.

It was originally spoken on the Capibaribe River, and was reported by Loukotka (1968) to have been spoken by a few individuals in Cimbres. As of the 1900s, the Xukuru population still had some recollection of the Paratió population, however the Paratió's geographical location suggests that they could be ancestors of the Kapinawá.

References

Extinct languages of South America
Xukuruan languages
Indigenous languages of Northeastern Brazil