Etymologically

Etymology and origin of the Latin word effulgeo

Confidence
Established
Formation
Derivation
First attested
70–19 BC, Virgil
Ultimate origin
Proto-Indo-European (*bʰlg-e/o-)
Etymology tree
inherited borrowed derived
Latin fulgeo
Latin effulgeo
Latin refulgeo
Latin fulmen
Latin fulmino
Latin fulmineus

Pronunciation

  • Classical: [ɛfˈfʊɫ.ɡe.oː][1]
  • Ecclesiastical: [efˈful̠ʲ.d͡ʒe.o][1]

Forms

effulgeō (present infinitive effulgēre, perfect active effulsī); second conjugation, no passive, no supine stem[1] A third-conjugation infinitive effulgere occurs in Virgil and Claudian.[2][3]

Etymology

It is from Latin ex- + fulgeō (“to shine”).[2][1][4] De Vaan traces fulgeō to Proto-Italic *folg-e/o- (“to shine”) and Proto-Indo-European *bʰlg-e/o- (“to shine”), the root of Ancient Greek φλέγω (phlégō, “to burn”).[5][6]

Earliest recorded meaning

The TLL reads it from Virgil on,[4] who has a new light flashing before the eyes and leaders shining far off with gold.[3]

Semantic evolution

It means to shine or blaze forth: Livy has a great light flashing in the sky,[2] Virgil Pallas shining in her cloud and waves gleaming with gold,[3] and Seneca the gleaming belly of a mullet.[2] Of people it is to shine in rich dress: Silius Italicus has a priest in snow-white robes, and Tacitus someone gleaming in finery.[3] Figuratively it is to stand out: in Livy the fame of Philip and Alexander made a young man conspicuous, Pliny the Elder says all the fables of Greece first shone forth from one bay, and Tacitus speaks of a thought flashing out in a short, pointed phrase.[2][3] Lewis & Short note it is not found before Augustus.[3] Virgil and Claudian have a third-conjugation infinitive effulgere.[2][3] In the Vulgate it is used of the sun shining.[3] The English effulgent comes from its participle.[6]

Timeline

  • 70–19 BC – Virgil of a new light flashing.[3][4]
  • 59 BC–17 AD – Livy of a great light in the sky.[2]
  • 4 BC–65 AD – Seneca of a gleaming mullet.[2]
  • 98–115 AD – Tacitus of a thought flashing out.[3]
  • 1738 – effulgent appears in English.[6]

Meanings

Verb

  1. To shine forth, blaze, flash, gleam, glitter;[2][3][1] (of persons) to shine in rich dress.[2][3][1]
  2. (figurative) To be conspicuous, stand out.[2][3]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f g h i j k l m Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Effulgeo.” Etymologically, 20 Oct. 2026, etymologically.com/la/effulgeo. Accessed 20 Oct. 2026.

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