catalytic

Etymology

It is borrowed from Ancient Greek καταλυτικός (katalutikós, “able to dissolve”),^{[2][3][4][5][6]} from κατάλυσις (katálusis, “dissolution”),^[2][5][7] the source of catalysis, from καταλύω (katalúō, “to dissolve”), formed from κατά (katá, “down”) and λύω (lúō, “to loosen”).^[2][6][3] Etymonline traces the Greek verb to Proto-Indo-European *leu- (“to loosen, divide, cut apart”).^[3] The Oxford Dictionary of English and the Shorter Oxford instead take the adjective as formed in English from that noun on the pattern of analysis and analytic.^[8][9]

Earliest recorded meaning

Of the nature of catalysis; able to act by catalysis: 1836, in a translation of the Swedish chemist J. J. Berzelius,^[2][3] who introduced the chemical sense of catalysis that year.^[3] Etymonline glosses the first use as having the power to decompose a compound chemical body.^[3]

Semantic evolution

The word was coined for chemistry, for a change brought about by an agent that itself remains unchanged,^[3][2] and it is also used figuratively of anything that sets off or speeds up a change.^[2][4] Merriam-Webster also records it as a noun meaning a catalyst.^[4] The catalytic converter, a device in the exhaust system of a motor vehicle that turns polluting gases into less harmful ones, is one of its best-known compounds.^[9]

Timeline

• 1836 – of the nature of catalysis; able to act by catalysis.^[2][3][4]

Meanings

Adjective

1. Relating to, involving or causing catalysis: a catalytic reaction.^[10][4][2]
2. Acting as a catalyst; bringing about or speeding up change: Her report played a catalytic role in the reform.^[2][4][9]

Word family

• catalytically
• anticatalytic
• noncatalytic
• catalytic converter

Related words

• catalysis
• catalyst
• catalyze
• analytic
• paralytic

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
5. ^ a b The American Heritage Dictionary of the English Language (2000), 4th ed., Boston: Houghton Mifflin
6. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
7. ^ Gove, Philip Babcock, ed. (1961), Webster's Third New International Dictionary of the English Language, Unabridged, Springfield, Mass.: G. & C. Merriam
8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
9. ^ a b c Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
10. ^ Collins English Dictionary (2023), Glasgow: HarperCollins