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See also: Morbus



Borrowed from Latin morbus



  1. (medicine, formal) disease
    • 1838, Thomas Hood, “A Rise at the Father of Angling” in The Comic Annual, page 47:
      I thought he were took with the Morbus one day, I did with his nasty angle!
      For “oh dear,” says he, and burst out in a cry, “oh my gut is all got of a tangle!”




From Proto-Indo-European *mer- (to die), the same root of mori (to die).



morbus m (genitive morbī); second declension

  1. (of the body or mind) a disease, illness, malady, sickness, disorder, distemper, ailment
  2. (of the mind) a fault, vice, failing
  3. (of the mind) Sorrow, grief, distress
  4. death (prima morbi accessione, at the first approach of death)


Second-declension noun.

Case Singular Plural
Nominative morbus morbī
Genitive morbī morbōrum
Dative morbō morbīs
Accusative morbum morbōs
Ablative morbō morbīs
Vocative morbe morbī

Derived terms[edit]

Related terms[edit]


  • Catalan: borm, morb, morma
  • French: morve
  • German: Morbus
  • Galician: mormo
  • Italian: morbo
  • Piedmontese: mòrb
  • Portuguese: morbo, mormo


  • morbus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • morbus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • morbus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
  • morbus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • he fell ill: in morbum incidit
    • to be attacked by disease: morbo tentari or corripi
    • to be laid on a bed of sickness: morbo afflīgi
    • to be seriously ill: gravi morbo affectum esse, conflictari, vexari
    • the disease gets worse: morbus ingravescit
    • to be carried off by a disease: morbo absūmi (Sall. Iug. 5. 6)
    • to recover from a disease: ex morbo convalescere (not reconvalescere)
    • to recruit oneself after a severe illness: e gravi morbo recreari or se colligere
    • to excuse oneself on the score of health: valetudinem (morbum) excusare (Liv. 6. 22. 7)
    • to die a natural death: morbo perire, absūmi, consūmi
    • to pretend to be ill: simulare morbum
    • to pretend not to be ill: dissimulare morbum
    • to plead ill-health as an excuse for absence: excusare morbum, valetudinem