The Etymology of Catalysis
Catalysis is a 19th-century coinage from a much older Greek word. Greek katálysis (κατάλυσις) was an everyday noun meaning a dissolving, a breaking-up, or an undoing — formed from kata- (down, completely) and lýein (to loosen, untie, dissolve). The Swedish chemist Jöns Jakob Berzelius adopted catalysis in 1836 as the technical name for a phenomenon that had puzzled chemists for decades: certain substances, like platinum or acids, could speed up reactions enormously without themselves being consumed or altered. He needed a word that captured the idea of a complete loosening of chemical bonds without the loosener being changed; katálysis was a near-perfect fit. The same Greek root lýein generates a small constellation of scientific terms — analysis (loosening up), paralysis (loosening beside), dialysis (loosening through), and the suffix -lysis throughout biology and chemistry. Catalysis quickly became indispensable to chemistry; the related noun catalyst followed in 1902.