Etymologically

Etymology and origin of the Latin word medio

Confidence
Established
Formation
Derivation
First attested
4th century AD, Apicius
Ultimate origin
Latin medius
Etymology tree
inherited borrowed derived
Latin medius
Italian mezzo
Latin medio
From the same root
Latin dimidius ← medius
Latin intermedius ← medius
Latin medialis ← medius
Latin medietas ← medius
Latin mediterraneus ← medius

Pronunciation

  • Classical: [ˈmɛ.di.oː][1]
  • Ecclesiastical: [ˈmɛː.di.o][1]

Forms

mediō (present infinitive mediāre, perfect active mediāvī, supine mediātum); first conjugation[1]

Etymology

It is from Latin medius (“middle”).[2][3][4] Wiktionary describes it as a Late and Vulgar Latin verb in -iō.[1] The adjective goes back to Proto-Italic *meþio- and Proto-Indo-European *medhi-o- (“middle”).[5]

Earliest recorded meaning

The TLL finds it from the Itala and the Latin Irenaeus on, mostly as the participle mediante;[3] in Apicius it means to halve something.[2][4][6]

Semantic evolution

Used intransitively it meant to be in the middle,[2][7] above all in the participle: Palladius uses it for the middle of a month,[4][6] and the Vulgate's die festo mediante means “when the feast was half over”.[4] The participle could also mean coming between, and Sidonius and Augustine use the verb of interceding or mediating.[4][6] The TLL notes that mediante often turned into a preposition, “by means of”, as in French moyennant and Italian mediante.[3] The deponent medior is also found.[3]

A Neo-Latin description of Muscovy uses it for an open field lying between two streets.[8] Wiktionary lists Portuguese mear and French moyer among its inherited descendants.[1] English mediate comes from its past participle, first in the 1540s sense “divide in two”.[9]

Timeline

  • 4th century AD – Apicius uses it for halving.[2][4][10]
  • 354–430 AD – Augustine writes die mediato, at midday, and uses it of interceding.[4][6][10]
  • 390–406 AD – The Vulgate has die festo mediante, when the feast was half over.[4][10]
  • end of the 4th or beginning of the 5th century AD – Palladius uses the participle for the middle of a month.[4][6][10]
  • c. 431–486 AD – Sidonius uses the participle for something coming between.[4][10]
  • 1540s – English mediate “divide in two” is formed from its past participle.[9]

Meanings

Verb

  1. (transitive) To halve, divide in the middle.[2][4][7]
  2. (intransitive) To be in the middle; to be half over.[2][4][6]
  3. To come between, intercede, mediate.[4][6][11]
  4. (New Latin) To lie between.[8]

Word family

  • mediātor
  • mediātrīx
  • sēmediātus
  • English mediate

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b c d Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e f g h i j k l m Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  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 d e f g Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  7. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  8. ^ a b Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  10. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  11. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Medio.” Etymologically, 24 Oct. 2026, etymologically.com/la/medio. Accessed 24 Oct. 2026.

Last edited on . ·