Etymologically

Etymology and origin of the Latin word diabolus

Confidence
Established
Formation
Borrowing
First attested
c. 160–220 AD, Tertullian
Borrowed from
Ancient Greek διάβολος
Ultimate origin
Ancient Greek διαβάλλω
Etymology tree
inherited borrowed derived
Latin diabolus
English devil
French diable
Italian diavolo

Pronunciation

  • Classical: [diˈa.bɔ.ɫʊs][1]
  • Ecclesiastical: [diˈaː.bo.lus][1]

Forms

diabolus m (genitive diabolī); second declension[1] Also diabulus (Old Latin Bible, Jerome, Augustine) and zabulus, zabolus (Lactantius, Commodian, Augustine); medieval dyabolus, diablus.[2][3][4][5]

Etymology

It is borrowed from Ancient Greek διάβολος (diábolos, “slanderer, accuser”),[1][3][6] a noun from διαβάλλω (diabállō, “to slander”), a compound of διά (diá, “through, across”) and βάλλω (bállō, “to throw”).[1]

Isidore of Seville explains the name twice: in Hebrew it means “flowing down”, because the Devil fell from heaven, and in Greek “accuser”, because he accuses the innocent before God.[7][5] The Romance words for “devil” continue it, among them Italian diavolo.[8]

Earliest recorded meaning

It is a word of Christian Latin.[8][3] The first author to use it is Tertullian, for a devil and for the Devil.[9][6][4]

Semantic evolution

In Bible translations and the Church Fathers it is the Devil, Satan, and also any demon or evil spirit.[9][10][5] Medieval writers kept these senses and applied the word to wicked people and, by metonymy, to disaster and ruin.[5] It entered plant and mineral names: morsus diabolī, “devil's bite”, for the devil's-bit scabious, and in alchemy dentēs diabolī for sal ammoniac.[5] In British sources the Devil appears as tempter, in possession and in curses, from Gildas and Bede on.[11]

Timeline

  • c. 160–220 AD – Tertullian uses it of a devil and of the Devil.[9][6][4]
  • c. 250–317 AD – Lactantius writes the form zabulus.[3][2][4]
  • c. 560–636 AD – Isidore of Seville explains the name from Hebrew and Greek.[12][4]
  • First third of the 8th century – Bede writes of the tyranny of the Devil being driven out.[11][4]

Meanings

Noun

  1. (Ecclesiastical Latin) The devil, Satan.[9][10][13]
  2. (Ecclesiastical Latin) A devil, demon, evil spirit.[9][5]
  3. (Medieval Latin) A wicked person.[5]
  4. (Medieval Latin) calamity, ruin.[5]
  5. (Medieval Latin, botany) morsus diabolī, the devil's-bit scabious.[5]

Word family

  • diabolicus
  • diabolōsus

Usage notes

Diabolus is also a Greek man's name in Plautus' Asinaria, where a young man of that name has a contract drawn up.[2]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  4. ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d e f g h i Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  6. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ Isidore of Seville, Etymologiarum sive Originum libri XX, ed. W. M. Lindsay (Oxford, 1911)., p. 8.11.18
  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 c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  10. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  11. ^ a b 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
  12. ^ Isidore of Seville, Etymologiarum sive Originum libri XX, ed. W. M. Lindsay (Oxford, 1911).
  13. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill

Borrowed into

Related etymologies

Cite this entry

“Diabolus.” Etymologically, 23 Oct. 2026, etymologically.com/la/diabolus. Accessed 23 Oct. 2026.

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