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See also: Morbus



Borrowed from Latin morbus



  1. (medicine, formal) disease




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, sickness, disorder, distemper, ailment, illness, malady.
  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.

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]



  • 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