çauana

Savanna comes from Spanish sabana (also savana), which was borrowed from Taino çauana or zahana, an indigenous word from the Caribbean islands (primarily Hispaniola and Cuba) for a flat, open plain with scattered trees. The Taino were the Arawak-speaking people whom Columbus encountered in 1492, and their vocabulary entered Spanish rapidly through the necessity of describing a New World landscape for which European languages had no terms. The Taino word named a specific feature of the Caribbean island topography: open grassland, often coastal, distinct from the forested interior. It was precise and local — a Caribbean term for Caribbean terrain.

Spanish colonists carried the word from the Caribbean to mainland South and Central America as they expanded their colonial enterprise. In Panama, Venezuela, and Colombia, they encountered similar open grassland ecosystems and applied the Caribbean word. The word sabana appears in Spanish colonial documents throughout the sixteenth century describing the llanos of Venezuela, the cerrado of Brazil, and the open grasslands of Central America. It was a practical colonial term: an existing indigenous word for a useful geographical category, stripped of its specific Caribbean context and applied wherever Spanish speakers found open grass. The ecological type was real; the word's origin in a specific island people's vocabulary was already being forgotten.

The English word 'savanna' — borrowed from Spanish sabana in the late sixteenth or early seventeenth century — became a technical term in British colonial writing, primarily describing African landscapes. British travelers and naturalists applying it to the African tropical grasslands were using a Taino word for a Caribbean phenomenon to describe a biome on a different continent. The African savanna — the vast tropical grassland covering roughly half of sub-Saharan Africa, supporting the world's largest terrestrial wildlife populations — has nothing geographically in common with the Caribbean island plains where the word originated. But the ecological resemblance — open grass with scattered trees — was sufficient to carry the word across the Atlantic and apply it to a landscape of entirely different origin and scale.

Modern ecology uses savanna as a technical term for any tropical or subtropical grassland with scattered trees, covering roughly 20% of Earth's land surface and found on every inhabited continent. The African savanna alone covers approximately 13 million square kilometers and supports the great wildlife migrations that define the popular image of African nature. The word that a Taino speaker used to describe a flat piece of a Caribbean island now names, in aggregate, billions of acres of tropical grassland across Africa, South America, Australia, and South Asia. The Taino people who gave the world this word were themselves largely exterminated by the Spanish colonization that carried it. The word survived the people who made it.