Etymologically

theologus

Etymology and origin of the Latin word theologus

Confidence
Established
Formation
Borrowing
First attested
81–43 BC Cicero, De natura deorum More words from the 1st century BC
Borrowed from
Ancient Greek θεολόγος
Ultimate origin
Ancient Greek θεολόγος
Etymology tree
inherited borrowed derived
Ancient Greek θεός (theós)
Ancient Greek θεολόγος (theológos)
Latin theologus
From the same root
Ancient Greek ἄθεος (átheos) ← θεός
Ancient Greek ἔνθεος (éntheos) ← θεός
English theism ← θεός
English theosophy ← θεός
Ancient Greek θεολογία (theología) ← θεολόγος

Forms

theologus m (genitive theologī); second declension[1]

Etymology

It is borrowed from Ancient Greek θεολόγος (theológos, “one who speaks of the gods, theologian”).[1][2][3] The first part of the Greek word is θεός (theós, “god”).[4]

Earliest recorded meaning

Cicero uses it in De natura deorum for those who write about the gods and their genealogies.[5][6][4]

Semantic evolution

In Classical Latin a theologus was a person who gives an account of the gods,[2][7] and Arnobius uses it in the same sense.[5][6] Augustine has it in The City of God.[8]

In medieval Latin the word was applied above all to John, the author of the Apocalypse, as the one through whom God speaks: Alcuin calls him the foremost of the theologi.[7] It came to mean a theologian, a scholar of Christian doctrine.[9][1] Neo-Latin also made it an adjective, “learned in theology”, with the superlative theologissimus in a letter of 1513.[10]

Its descendants include Italian teologo, Spanish teólogo and Romanian teolog.[1]

Timeline

  • 81–43 BC – Cicero uses it of writers on the gods.[5][4]
  • 297–310 AD – Arnobius uses it in the same sense.[5][4]
  • 413–426 AD – Augustine uses it in The City of God.[8]
  • 1513 – A Neo-Latin letter praises men as theologissimi, “most learned in theology”.[10]

Meanings

Noun

  1. One who writes or speaks about the gods and divine things.[2][5]
  2. (Ecclesiastical Latin) A theologian.[9][1]
  3. (Medieval Latin) One through whom God speaks, especially John as author of the Apocalypse.[7]

Word family

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Saalfeld, Günther Alexander (1874), Index Graecorum vocabulorum in linguam latinam translatorum, Berlin: Weidmann
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  7. ^ a b c 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
  8. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  9. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  10. ^ a b Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de

Related etymologies

Cite this entry

“Theologus.” Etymologically, 13 Nov. 2026, etymologically.com/la/theologus. Accessed 14 Nov. 2026.

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