The Borum languages, also known as Aimoré and formerly Botocudoan, now sometimes Krenakan after the last language remaining, are a branch of the Macro-Jê languages – spoken mainly in Brazil – including moribund Krenak and extinct languages such as Guerén and Nakrehé. Loukotka (1968) considered them dialects of a single language, but more recent treatments (Campbell 1997, Campbell 2012) describe at least some of them as separate languages.

A fair amount of lexical data was collected before the majority of languages became extinct.

Loukotka (1968) illustrates the following:

and mentions sources of data for:

reported in 1913 to still be spoken. Miñan-yirugn and some of the other might still have been spoken in Loukotka's time.

Other varieties sometimes reported in the literature, but of which nothing is known, include Ankwet (Anquet) and Xónvúgn (Chonvugn).

Mason (1950) lists:

Below is a full list of Botocudo (Aimoré; Batachoa) varieties listed by Loukotka (1968), including names of unattested varieties.