Etymologically

Etymology and origin of the Latin word epidemia

Confidence
Established
Formation
Borrowing
First attested
1020–1087, Constantine the African
Borrowed from
Ancient Greek ἐπιδήμια
Ultimate origin
Ancient Greek ἐπιδήμια
From the same root
Latin epidemicus ← epidemia

Forms

epidēmia f (genitive epidēmiae); first declension[1][2] In Late Latin it was a neuter plural, epidēmia (genitive epidēmiōrum), second declension, which Medieval Latin reanalysed as a feminine singular.[1][2] Medieval spellings include epydemia, epidamia and epidimia.[2][3]

Etymology

It is borrowed from Ancient Greek ἐπιδήμια (epidḗmia), the neuter plural of ἐπιδήμιος (epidḗmios), from ἐπί (epí, “upon”) and δῆμος (dêmos, “people”).[1][4] The DMLBS also compares the noun ἐπιδημία (epidēmía), from which the MLW and Köbler derive it;[4][2][5] the Greek noun meant a stay in a place and also the prevalence of an epidemic disease.[6][5]

Earliest recorded meaning

Constantine the African, in the 11th century, uses it for a change in the air that is harmful to many at once, a weather favouring disease.[2][5]

Semantic evolution

From the unhealthy state of the air it passed to the outbreak of disease itself, an epidemic or plague,[2][4] and in English sources it is used especially of the Black Death.[4] It also named Hippocrates' book on epidemics.[2][4]

The word reached English through French épidémique, the source of English epidemic (about 1600).[6]

Timeline

  • 1020–1087 – Constantine the African uses it of air harmful to many.[2][5]
  • 1362 – A royal grant says that sound learning has greatly declined through the present epidemic.[4]
  • 1448 – A Hungarian source says a school stood deserted because of a pressing epidemic.[3]
  • c. 1600 – English forms epidemic from French, from the Medieval Latin word.[6]

Meanings

Noun

  1. (Late Latin, plural) Epidemic diseases.[1]
  2. (Medieval Latin) A state of the air or weather that favours disease.[2]
  3. (Medieval Latin) An epidemic, plague, pestilence.[2][4][3]
  4. (Medieval Latin) Epidemiae, the title of Hippocrates' work on epidemics.[2]

Word family

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 Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  3. ^ a b c Bartal, Antal, et al. (1987–), Lexicon Latinitatis Medii Aevi Hungariae, Budapest: Akadémiai Kiadó; online ed. ELTE
  4. ^ a b c d e f g Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com

Derived terms

Related etymologies

Cite this entry

“Epidemia.” Etymologically, 24 Oct. 2026, etymologically.com/la/epidemia. Accessed 24 Oct. 2026.

Last edited on . ·