xenon

Etymology

It is borrowed from Ancient Greek ξένον (xénon),^[2][3][4] the neuter form of the adjective for foreign or strange.^[2][3][5][6] Klein treats the name as Modern Latin, literally "the strange, that is rare, element".^[7] It was coined in 1898 by the discoverers of the element, the chemists Sir William Ramsay and Morris William Travers.^[4][7] Barnhart calls the Greek word of uncertain origin,^[4] and Etymonline derives it from Proto-Indo-European *ghos-ti- (“stranger, guest, host”);^[5] Ayto says more cautiously that it may be a distant relative of guest and host.^[8]

Earliest recorded meaning

A heavy inert gas in the atmosphere: 1898, in Ramsay and Travers's report to the British Association at its Bristol meeting.^[2] Nature of 6 October 1898 noted the announcement of two new elements, "Monium and Xenon", in the first two days of that meeting; monium turned out not to be an element.^[5]

Semantic evolution

The word has had no sense but the element's.^[2][9] According to Merriam-Webster's Book of Word Histories, Ramsay and his associates named neon, krypton and xenon in the same year, and xenon got its name because it was thought to be extremely rare.^[10] Etymonline is more doubtful of any link between the names and the gases, suggesting that they may have been distributed at random, since xenon is no stranger than the others.^[5] The element was long classed as inert, but it is now known to form compounds.^[11]

Timeline

• 1898 – the name of the element, first announced at the Bristol meeting of the British Association.^[2][5][9]

Meanings

Noun

1. A heavy, colorless, odorless noble-gas element, found in minute amounts in the atmosphere and obtained from liquefied air, and used in special lamps; atomic number 54, symbol Xe.^[3][9][11]

Word family

• xenon arc
• xenon hexafluoride
• xenon tetrafluoride
• xenon trioxide

Related words

• xeno-
• xenophobia
• guest
• host

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
4. ^ a b c Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
5. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
6. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
7. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
8. ^ Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
9. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
10. ^ Merriam-Webster's Book of Word Histories, Springfield, Mass.: Merriam-Webster
11. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins