cosmos

Etymology

It is borrowed from Ancient Greek κόσμος (kósmos, “order, ornament; world, universe”),^[2][3][4][5] a word of uncertain origin;^[3][6] Etymonline takes it through the Latinized form cosmos,^[7] and Merriam-Webster traces the modern use through German Kosmos.^[8] An isolated Middle English cossmos (“the universe, the world”) appears in the Ormulum about 1200,^[3][7] after which the word is not found again until the 17th century.^[9][2] Wiktionary takes the Greek word ultimately from Proto-Indo-European *ḱens- (“to announce; to put in order”).^[1] The Greek noun gave the verb κοσμέω (kosméō, “to order, arrange, adorn”),^[1][10] the source of cosmetic.^[10][11] The garden plant was named in New Latin Cosmos in 1791 by the botanist Cavanilles, from its elegant foliage, after the Greek sense "ornament".^[2]

Earliest recorded meaning

The universe or the world: about 1200, in the Ormulum.^[3][7] The OED's first record, from Bulwer's Anthropometamorphosis (1650), is the world or universe regarded as an ordered whole;^[2] Merriam-Webster dates this sense to 1596.^[8]

Semantic evolution

In Greek the word meant above all "order", and also "ornament, decoration";^[2][7] Pythagoras or his followers are said to have been the first to use it of the universe, for its perfect order and arrangement.^{[2][3][10][7]} Word Origins sees in this double sense of "order" and "adornment" an insight into Greek thought.^[11] In English the word long remained rare: Barnhart and Etymonline note that it became current only from 1848, as the English equivalent of the title of Humboldt's Kosmos in translations from German.^[3][7] The sense "order, harmony", often opposed to chaos, is recorded from 1858, in Carlyle,^[2][12] and that of any ordered system, such as a person's system of thought, from 1882.^[2] The name of the Mexican garden flower is recorded in English from 1813.^[2] In the 20th century the Greek word lay behind the Soviet cosmonaut, distinguished from the American astronaut.^[10] In American drug slang cosmos has been a name for phencyclidine since the late 1970s.^[13]

Timeline

• c. 1200 – the universe, in the Ormulum (isolated).^[3][7]
• 1596 – the universe as an orderly system.^[8]
• 1650 – the world or universe as an ordered whole.^[2]
• 1813 – the garden plant.^[2]
• 1848 – current in translations of Humboldt's Kosmos.^[3][7]
• 1858 – order, harmony, as opposed to chaos.^[2]
• 1882 – any ordered system, as of a person's ideas.^[2]

Meanings

Noun

1. The universe regarded as an orderly and harmonious system.^[14][8][2]
2. Any complete and ordered system.^[14][8][2]
3. Order and harmony, as opposed to chaos.^[14][8][2]
4. A tropical American plant of the genus Cosmos, of the composite family, grown in gardens for its brightly coloured flowers.^[14][5][2]

Word family

• cosmic
• microcosmos

Related words

• cosmo-
• cosmogony
• cosmography
• cosmology
• cosmonaut
• cosmopolitan
• cosmetic
• microcosm
• macrocosm

References

1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m n o p q Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
4. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
5. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
6. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
7. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
8. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
9. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
10. ^ a b c d Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
11. ^ a b Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
12. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
13. ^ Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
14. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins