Note: Do not rely on this information. It is very old.
Gentoo
Gentoo (Portuguese gentio, a "Gentile" or heathen), a term formerly applied in a vague way to the pagan inhabitants of the Indian seaboard, and then more particularly to the Telugu people of Madras. The expression "Gentoo language" was always understood to refer to the Telugu, which is a chief member of the Dravidian linguistic family. [Dravidian.] In Jagor and Kcerbin's lists there is a low-caste Madras tribe still specially known by this name.