Etymologically

enthusiasmus

Etymology and origin of the Latin word enthusiasmus

Confidence
Established
Formation
Borrowing
Borrowed from
Ancient Greek ἐνθουσιασμός
Ultimate origin
Ancient Greek ἐνθουσιασμός
Etymology tree
inherited borrowed derived
Latin enthusiasmus
English enthusiasm

Pronunciation

  • Classical: [ɛn.tʰuː.siˈas.mʊs][1]
  • Ecclesiastical: [en.tu.s̬iˈaz.mus][1]

Forms

enthūsiasmus m (genitive enthūsiasmī); second declension[1]

Etymology

It is borrowed from Ancient Greek ἐνθουσιασμός (enthousiasmós, “divine inspiration, enthusiasm”),[1][2] from ἐνθουσιάζω (enthousiázō, “to be inspired or possessed by a god”), from ἔνθεος (éntheos, “possessed by a god”).[2]

Earliest recorded meaning

Etymonline calls it Late Latin,[2] but Ramminger notes that the TLL has only the Greek form; his examples are Neo-Latin, such as Birck's Stomius, where enthusiasm stirs poets.[3]

Semantic evolution

In Neo-Latin it meant poetic frenzy, the furor poeticus.[3][1] English took it over about 1600, from French and directly from Latin, and under the Puritans it came to mean excessive religious emotion.[2]

Timeline

  • c. 1600 – English borrows it as enthusiasm, from French and also directly from Latin.[2]

Meanings

Noun

  1. (New Latin) Poetic fervour, inspired frenzy.[3][1]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ a b c Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de

Borrowed into

Related etymologies

Cite this entry

“Enthusiasmus.” Etymologically, 24 Oct. 2026, etymologically.com/la/enthusiasmus. Accessed 24 Oct. 2026.

Last edited on . ·