Whence
Guano (the word)
Word

Where does Guano (the word) come from?

Guano comes from wanu, the Quechua word for dung used as fertiliser. The Inca strictly protected the seabirds nesting on islands off Peru, and in the 1800s ships carried their droppings around the world to fertilise farms.

Source: etymonline.com ↗

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