Etymologically

Etymology and origin of the English word comatose

Confidence
Probable
Formation
Borrowing
First attested
1670 before 1670, S. Collins, Systeme of Anatomy More words from the 17th century
Borrowed from
Latin comatosus
Ultimate origin
Ancient Greek κῶμα

Pronunciation

  • UK: /ˈkəʊ.məˌtoʊs/, /ˈkɒm.əˌtəʊs/[1]
  • US: /ˈkoʊ.məˌtoʊs/, /ˈkɑm.əˌtoʊs/[1]

Etymology

According to the revised OED it is borrowed from New Latin comatosus, recorded in a Latin translation of Galen of 1515,[2] formed from the stem of Ancient Greek κῶμα (kôma, “deep sleep”) and the suffix Latin -ōsus.[2][3] Other dictionaries form it in English from the Greek stem with the suffix -ose.[4][5][6][3][7] Etymonline suggests that it may have come immediately from French comateux,[8] which Merriam-Webster Unabridged gives as its source, formed from the Greek stem with the suffix -eux.[9] The Greek noun is also the source of coma, and is itself of uncertain origin.[8][3] English earlier had comatous, used from the mid 17th to the late 18th century.[2][5]

Earliest recorded meaning

Of the nature of a coma: before 1670, in S. Collins's Systeme of Anatomy, published in 1685; "affected with coma" follows in 1680.[2] The OED revised these dates: its 1989 edition, like Etymonline and Merriam-Webster Unabridged, began with 1755,[10][8][9] while the Shorter Oxford and the Oxford Dictionary of English place the word in the late 17th century.[5][6]

Semantic evolution

In 1657 an English translation of Bauderon's Expert Phisician still used the Latin feminine comatosa for a fever affecting the head.[2] Johnson (1755) defined the adjective as "lethargick; sleepy to a disease", quoting Grew.[11] The transferred sense, drowsy, lethargic or deeply asleep, is dated 1754 by the revised OED,[2] 1828 by Etymonline and the 1989 edition,[8][10] and the early 19th century by the Shorter Oxford.[5] A figurative use for a person unable or unwilling to think or feel normally, at first also of a place, is recorded from before 1799.[2] Merriam-Webster Unabridged also applies it to things that are dull and inactive, such as a market.[9] In American college slang of the 1980s comatose or comatosed meant very drunk.[12]

Timeline

  • before 1670 – of the nature of a coma.[2]
  • 1680 – affected with coma, deeply unconscious.[2]
  • 1754 – lethargic, drowsy, in a deep sleep.[2] Etymonline and the 1989 edition of the OED date this sense to 1828.[8][10]
  • before 1799 – figurative, emotionally deadened or unresponsive.[2]
  • 1986 – US college slang, very drunk.[12]

Meanings

Adjective

  1. In a coma; deeply unconscious and not responding to stimuli.[9][2][5]
  2. Relating to or resembling a coma: a comatose state.[9][2]
  3. Lethargic, torpid or inactive; also, fast asleep: After the long lunch the whole office was comatose.[9][2][5]
  4. (US slang) Very drunk.[12]

Word family

  • comatosely
  • comatoseness

Usage notes

The first edition of the OED (1891) stressed the third syllable, and its derivatives comatosely and comatoseness likewise.[2] Merriam-Webster Unabridged records the less common variant comatous.[9]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  4. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  5. ^ a b c d e f Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ a b Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  7. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  8. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  9. ^ a b c d e f g Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  10. ^ a b c Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  11. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  12. ^ a b c Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com

Related etymologies

Cite this entry

“Comatose.” Etymologically, 13 Nov. 2026, etymologically.com/en/comatose. Accessed 14 Nov. 2026.

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