'Tobacco' is Taino — probably the name of the smoking pipe, not the plant. Colonizers mixed them up.
A plant of the nightshade family whose leaves are cured and processed for smoking, chewing, or snuff; the prepared leaves themselves.
From Spanish 'tabaco,' probably from Taino (an Arawakan language of the Caribbean). The exact referent is debated: some scholars believe the Taino word referred to the Y-shaped pipe or tube used for inhaling smoke through the nostrils, not the plant itself, and the Spanish transferred the name of the instrument to the substance. Others connect it to Taino 'tabaco' meaning a roll of leaves. The word spread
The word 'tobacco' may originally have meant the pipe, not the plant. Spanish explorers reportedly saw Taino people using a Y-shaped tube called a 'tabaco' to inhale smoke through both nostrils simultaneously, and applied the name of the device to the substance being smoked — like calling coffee 'mug.'