Etymologically

Etymology and origin of the Latin word diffamo

Confidence
Established
Formation
Derivation
First attested
43 BC–18 AD, Ovid
Ultimate origin
Latin fāma
Etymology tree
inherited borrowed derived
Latin fama
Latin diffamo

Pronunciation

  • Classical: [dɪfˈfaː.moː][1]
  • Ecclesiastical: [difˈfaː.mo][1]

Forms

diffāmō (present infinitive diffāmāre, perfect active diffāmāvī, supine diffāmātum); first conjugation[1]

Etymology

It is from Latin dis- + fāma (“report, rumour”), with the verbal ending of the first conjugation.[2][3] The TLL compares īnfāmō (“to bring into disrepute”);[3] Etymonline takes ⟨dis-⟩ here as suggesting ruin.[4] fāma goes back to Proto-Italic *fāmā and Proto-Indo-European *bʰéh₂meh₂.[1]

Earliest recorded meaning

It is first found in Ovid's Metamorphoses, where an adultery is spread abroad and reported to a parent.[2][5]

Semantic evolution

In Classical Latin it meant both to spread news abroad and to defame or slander;[2][5] Tacitus has both senses, and Lewis & Short call it rare and not earlier than Augustus.[2][5] The Vulgate uses it of giving a girl an evil name.[5]

In Medieval Latin it could be neutral or even favourable, “to make widely known, proclaim”, and “to celebrate, praise”;[6][7][8] it also meant to compromise, slander, accuse or disgrace, and in law to challenge a witness.[6][8] Through Medieval Latin ⟨defamare⟩ and Old French it gave English defame.[4]

Timeline

  • 43 BC–18 AD – Ovid uses it for spreading a story abroad.[2][9]
  • 98–115 AD – Tacitus uses it for defaming people in scurrilous writings.[2][9]
  • 390–406 AD – The Vulgate uses it of giving someone an evil name.[5][9]
  • first third of the 8th century AD – Bede uses it of miracles made widely known.[8][9]
  • c. 1300 – English defame, from Old French, goes back to it through Medieval Latin.[4]

Meanings

Verb

  1. To spread the news of, publish abroad.[2][5]
  2. To defame, slander.[2][5]
  3. (Medieval Latin) To proclaim; to celebrate, praise.[6][7]
  4. (Medieval Latin) To compromise; to accuse; to disgrace.[6][8]
  5. (Medieval Latin, law) To challenge a witness.[6]

Word family

  • diffamatio
  • diffāmia
  • fāma
  • English defame

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e f g Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c d e Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  7. ^ a b Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  8. ^ a b c d 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
  9. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Diffamo.” Etymologically, 25 Oct. 2026, etymologically.com/la/diffamo. Accessed 25 Oct. 2026.

Last edited on . ·