1911 Encyclopædia Britannica, Volume 4… (1911)
“ BOTOCUDOS (from Port. botoque, a plug, in allusion to the wooden disks or plugs worn in their lips and ears) , the foreign name for a tribe of South American Indians of eastern Brazil, also known as the Aimores or Aimbores. They appear to have no collective tribal name for themselves. Some are called Nac-nanuk or Nac-poruk, “sons of the soil.” The name Botocudos cannot be traced much farther back than the writings of Prince Maximilian von Neuwied (Reise nach Bresilien, Frankfort-on-Main, 1820) . ”
