Etymologically

Etymology and origin of the Latin word meracus

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin merus
Etymology tree
inherited borrowed derived
Latin merus
Latin meracus

Pronunciation

  • Classical: [mɛˈraː.kʊs][1]
  • Ecclesiastical: [meˈraː.kus][1]

Forms

merācus (feminine merāca, neuter merācum, superlative merācissimus); first/second-declension adjective[1] It has a comparative merācior and a superlative merācissimus.[2][1] Manuscripts of medical writers often spell it merātus, apparently a scribal error.[3]

Etymology

It is from Latin merus + -ācus,[2][1] formed like ebriacus (“drunk”).[2][3] The adjective merus (“pure, unmixed”) goes back to Proto-Italic *mero- and Proto-Indo-European *merH-o- (“remaining, pure”).[4]

Earliest recorded meaning

Cicero has it first, of wine taken less diluted: in On the Nature of the Gods a doctor knows that a patient told to drink wine will take it too strong.[3][5]

Semantic evolution

Its proper use is of drinks, above all wine, taken neat or little mixed; the medical writers, from Celsus on, use it often.[3][6] Horace and Persius apply it to undiluted hellebore,[6] and figuratively Cicero speaks of a people that drank a liberty too undiluted.[6][7] Late writers used it of anything pure, Augustine of the lust for power and Sidonius of a very pure fountain of knowledge.[8] The adverb merācē is post-Augustan.[6]

Timeline

  • 81–43 BC – Cicero uses it of wine and, figuratively, of liberty.[3][6][5]
  • 65–8 BC – Horace uses it of hellebore.[6][5]
  • 14–37 AD – Celsus prescribes wine more or less undiluted.[3][5]
  • c. 431–486 AD – Sidonius Apollinaris writes of a very pure fountain of knowledge.[6][5]

Meanings

Adjective

  1. Undiluted, neat, of wine and other drinks.[2][6]
  2. Pure, unadulterated, of drugs and other substances.[6][8]
  3. (figurative) Unmixed, unrestrained.[6][8]

Word family

  • merāculus

Usage notes

The TLL quotes a late grammarian's distinction: merum is the pure liquid by itself, merācum something mixed, that is, wine strong but not wholly unmixed.[3]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f g Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d e f g h i j Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
Cite this entry

“Meracus.” Etymologically, 20 Oct. 2026, etymologically.com/la/meracus. Accessed 22 Oct. 2026.

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