Etymologically

fulmineus

Etymology and origin of the Latin word fulmineus

Confidence
Established
Formation
Derivation
First attested
96–55 BC, Lucretius
Ultimate origin
Proto-Indo-European (*bʰl̥g-e/o-)
Etymology tree
inherited borrowed derived
Latin fulgeo
Latin effulgeo
Latin fulmen
Latin fulmino
Latin fulmineus
Latin praefulgeo
Latin refulgeo

Pronunciation

  • Classical: [fʊɫˈmɪ.ne.ʊs][1]
  • Ecclesiastical: [fulˈmiː.ne.us][1]

Forms

fulmineus (feminine fulminea, neuter fulmineum); first/second-declension adjective[1]

Etymology

It is from Latin fulmen (“lightning, thunderbolt”) + -eus.[2][1] De Vaan derives fulmen, from an older form with ⟨-gm-⟩, from fulgō (“to flash, shine”), and calls that derivation certain.[3] The verb goes back to Proto-Italic *folg-e/o- (“to shine”) and Proto-Indo-European *bʰl̥g-e/o- (“to shine”).[3] Cognate with Ancient Greek φλέγω (phlégō, “to burn”) and φλόξ (phlóx, “flame”).[3]

Earliest recorded meaning

De Vaan dates it from Lucretius,[3] who speaks of fulmineus ignis, “the fire of the thunderbolt”;[2][4] Köbler's first source is Horace.[5]

Semantic evolution

Lewis & Short call it poetic.[4] It first means belonging to or caused by lightning, as in Horace's and Ovid's ictus, the stroke of the thunderbolt,[2][4] and then like a flash of lightning or a peal of thunder.[2] Figuratively it describes what acts like lightning, in speed or destructiveness: Virgil's fulmineus Mnestheus,[2][4] and in Silius Italicus a tigress running with the speed of lightning.[2] Lewis & Short also give the senses sparkling, splendid.[4][1] Ecclesiastical Latin keeps the senses “of lightning” and “brilliant” and adds “dangerous”.[6]

Timeline

  • 96–55 BC – Lucretius, of the fire of lightning.[2][3][5]
  • 65–8 BC – Horace, of the thunderbolt's stroke.[4][5]
  • 70–19 BC – Virgil, figuratively of a warrior.[2][5]
  • 25–101 AD – Silius Italicus, of lightning speed.[2][5]

Meanings

Adjective

  1. Of or caused by lightning or the thunderbolt.[2][4][1]
  2. Like a flash of lightning or a peal of thunder.[2]
  3. Acting like lightning, swift or destructive; having the speed of lightning.[2]
  4. (figurative) Sparkling, brilliant, splendid.[4][1][6]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b c d e f g h Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Fulmineus.” Etymologically, 20 Oct. 2026, etymologically.com/la/fulmineus. Accessed 20 Oct. 2026.

Last edited on . ·