Etymologically

Etymology and origin of the English word morose

Pronunciation

  • UK: /məˈɹəʊs/[1]
  • US: /məˈɹoʊs/, /mɔɹˈoʊs/[1]

morose1 sullen, gloomy

Confidence
Established
Formation
Borrowing
First attested
1565 Thomas Cooper, Thesaurus
Borrowed from
Latin morosus
Ultimate origin
Latin mōs

Etymology

The word for gloomy and sullen is borrowed from Latin mōrōsus (“hard to please, peevish, fastidious, exacting”),[2][3][4][5][6] formed from mōs (“manner, custom, habit; self-will, caprice”) and -ōsus, the source of -ose.[2][4][7][8] Hoad takes mōs here in the special sense "humour, fancy",[5] and Klein glosses the Latin adjective literally as "of (bad) manners";[9] Etymonline contrasts English manners, which by itself means good manners.[3] The same noun is the source of moral.[3][4][5] The American Heritage Dictionary places it under the Indo-European root Proto-Indo-European *mē-.[6] French morose is recorded from 1618 for a gloomy, glum person.[2]

Earliest recorded meaning

Of people: sullen, gloomy, sour-tempered, unsociable: 1565, in Thomas Cooper's Latin–English Thesaurus.[2][4][8] Etymonline dates the word to the 1530s,[3] and the Shorter Oxford to late Middle English, with an early sense "slow, deliberate; painstaking, scrupulous" that lasted into the late 17th century.[10]

Semantic evolution

Skeat distinguished a good sense of the Latin word, "scrupulous", and a bad one, "peevish";[11] in English the word has had the sense "sullen, gloomy" from its first record.[2] The sense "scrupulous, painstaking" appears only in the 1690s.[2][10] From 1694 the word was extended to things,[2] and in 1791 to outlooks and opinions, meaning pessimistic.[2] Johnson (1755) defined it as "sour of temper; peevish; sullen".[12] As a noun, the morose, morose people as a class, it is recorded from 1620 but is now rare.[2]

Timeline

  • 1565 – of people, sullen, gloomy, sour-tempered.[2][4]
  • 1620 – noun, the morose, morose people.[2]
  • 1652 – of a thing, intractable (obsolete).[2]
  • 1694 – in extended use, of things.[2]
  • 1695 – scrupulous, painstaking (obsolete).[2][10]
  • 1791 – of an outlook or opinion, pessimistic.[2]

Meanings

Adjective

  1. Having a sullen, gloomy and unsociable temper; ill-tempered: He sat morose and silent through dinner.[8][13][2]
  2. Of an outlook or mood, gloomy or pessimistic.[2][13]
  3. (obsolete) Scrupulous, painstaking.[2][10]

Word family

  • morosely
  • moroseness
  • morosity
  • unmorose

morose2 lingering (theology)

Confidence
Established
Formation
Borrowing
First attested
1645 Henry Hammond, Practical Catechism
Borrowed from
Latin morosus
Ultimate origin
Latin mora

Etymology

The word for a thought sinfully dwelt upon is borrowed from Latin morōsus, with a short o, recorded from the late 2nd century AD, from mora (“delay”) and -ōsus.[2] Thomas Aquinas already used Latin morosa delectatio as an established term and connected it with mora and with immoror (“to linger upon”).[2] Trench and Skeat note that in medieval Latin the adjective was associated with mora rather than with mōs.[14][11]

Earliest recorded meaning

Of a thought or feeling, wrongly or sinfully prolonged or dwelt upon: 1645, in Henry Hammond's Practical Catechism.[2][14]

Semantic evolution

In the treatises of Christian ethics, Trench explains, the word named the sin of lingering on impure or malignant thoughts instead of rejecting them at once, and English divines used it while scholastic theology still had influence;[14] he quotes Hammond's "all morose thoughts, that is, delaying, dwelling", and Robert South on "the morose dwelling of the thoughts upon an injury".[14] Trench adds that by his time the sense had been entirely given up,[14] and the OED calls it now rare.[2] A Roman-law sense, chargeable with undue delay in pressing a claim, is recorded once, in 1875.[2] The phrase is paralleled by French délectation morose (1863).[2]

Timeline

  • 1645 – of a thought, sinfully dwelt upon.[2][14]
  • 1662 – morose thoughts, in Nicholson's Exposition of the Catechism.[14]
  • 1875 – in Roman law, guilty of undue delay (obsolete).[2]

Meanings

Adjective

  1. (theology, rare) Of a thought or feeling, sinfully lingered or dwelt upon, as in morose thoughts.[2][14]

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 p q r s t u v w x y z 27 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  5. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  6. ^ a b The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  7. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  8. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  9. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  10. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  11. ^ a b Skeat, Walter W. (1911), A Concise Etymological Dictionary of the English Language, new ed., Oxford: Clarendon Press
  12. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  13. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins
  14. ^ a b c d e f g h Trench, Richard Chenevix (1859), A Select Glossary of English Words Used Formerly in Senses Different from Their Present, London: John W. Parker

Related etymologies

Cite this entry

“Morose.” Etymologically, 7 Nov. 2026, etymologically.com/en/morose. Accessed 7 Nov. 2026.

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