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Where does the name chlorine come from?

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A labeled diagram of the chlorine element from the periodic table shows its atomic number 17, symbol Cl, electron configuration, and atomic weight range. The box is shaded green to indicate chlorine is a halogen, with icons for orthorhombic crystal structure, gas state at room temperature, and strong acidity. A key explains the icons and colors used. — chlorine Properties of chlorine.

The name chlorine is derived from the Greek word chloros, which means "yellowish green."1

This name was given to the element by the English chemist Sir Humphry Davy in 1810, after he recognized that the gas—first isolated by Carl Wilhelm Scheele in 1774—was indeed an element. The name reflects the distinct greenish-yellow color of the gas.12