A small vocabulary list was collected in 1943; only 30 Pijao words and expressions are known. The few words which resemble
Carib are thought to be loans; toponyms in Pijao country are also Carib. Durbin & Seijas (1973) did not detect significant connections between Pijao and other unclassified languages of the area:
Colima,
Muzo,
Pantágora, and
Panche, but these are even more poorly attested than Pijao. Jolkesky (2016) also notes that there are lexical similarities with the
Witoto-Okaina languages. ==Vocabulary==