2.20 The eastern Colombian lowlands 161
Finally, a few interesting lexical coincidences can still be mentioned, namely, the words
for ‘fire’ mu (cf. Culli mu) and ‘to die’ uba (cf. Kams´a-oba-na). Rivet (1942) mentions
a small number of lexical similarities with Yurumangu´ı.
2.20 Overview of the languages of the eastern Colombian lowlands
In the northwest of South America, as well as further south, the contrast between the
Andean cordilleras and highlands and the eastern lowlands with their tropical climate
is no less than dramatic. Roughly speaking, this is reflected in the distribution of ethnic
groups and languages as migrations tended to be confined to either one of the two regions.
In the eastern lowlands of Colombia, watered by the Amazon and Orinoco rivers and their
numerous tributaries, natural borders play a less important role than in the Andes, so that
long distance migrations were not unusual. As a result, many lowland languages belong
to families of considerable extension, and some individual languages are separated from
their closest relatives by a distance of thousands of kilometres. A striking example is
provided by a group of Cariban speakers which inhabited the department of Caquet´ain
southeastern Colombia (now in Amazonas and Guaviare). The closest living relatives
of their language, called Carijona (also Guaque, Hianacoto or Umaua, possibly clan
names; cf. Durbin and Seijas 1973c), are the languages of the Trio and the Akuriyo in the
border region of Brazil and Surinam (Meira 2000). Nevertheless, it would be a mistake to
view the division between the Andes and the eastern lowlands as impermeable. It is likely
that groups of Andean origin were forced into the pre-Andean foothills and lowlands on
several occasions, and, vice versa, the occupation of Andean river valleys, such as the
Magdalena valley, by Amazonian peoples has been attested beyond reasonable doubt.
In the preceding sections we have discussed several lowland languages which appear
to have an Andean origin, namely, Uw Cuwa (section 2.10), Kams´a (section 2.18), and
possibly Andaqu´ı (section 2.16). One small family and an isolate, which are located
near the Andes without substantial eastward extensions, are further candidates for such
a background. Additional research is needed in order to establish their possible genetic
connections. The Betoi family (cf. Constenla Uma˜na 1991; Zamponi 1996) consisted of
several closely related languages or dialects (Airico, Betoi, Ele, Jirara, Lolaca, Situfa,
etc.), located in the Colombian departments of Arauca and Casanare and in the Venezue-
lan state of Apure. There is a small group of Spanish-speaking survivors. The Cof´an
or A
i-ngae language is spoken by a strong ethnic group inhabiting a border area in the
western part of the Colombian department of Putumayo and the Ecuadorian province
of Sucumb´ıos (Borman 1976; Constenla Uma˜na 1991). The Cof´an number well over a
thousand, but their language still lacks a grammatical description.
A further linguistic isolate, located in the Sierra de la Macarena in the department of
Meta, is Tinigua (cf. Tobar Ortiz 2000). It is the last surviving language of a small family,
which further comprised Pamigua and Majigua. The language had long been considered