Etymograph

English

medium

Medium comes from Latin medium, neuter of medius ‘middle’, from Proto-Italic *meðjos ‘middle’, from Proto-Indo-European *médʰyos ‘middle’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*me1‘near, by, with’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*médʰi2‘with, among’reconstructed
  3. Proto-Indo-Europeanc. 4500–2500 BCE*médʰyos2‘middle’reconstructed
  4. Proto-Italicc. 1500–700 BCE*meðjos2‘middle’reconstructed
  5. Latinc. 75 BCE–200 CEmedius2‘middle’
  6. Latinc. 75 BCE–200 CEmedium2neuter of medius
  7. Englishearliest quotation 1631medium2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Proto-Indo-European *médʰyos
  2. 2 Wiktionary, English medium
  3. Earliest quotation in Wiktionary’s entry: 1631, Francis Bacon, III. Century. [Experiments in Consort, Touching the Medium o: “VVhether any other Liquours, being made Mediums, cauſe a…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*meWiktionary, Proto-Indo-European *médʰyos‘near, by, with’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*médʰiWiktionary, English medium‘with, among’reconstructed
  3. Proto-Indo-Europeanc. 4500–2500 BCE*médʰyosWiktionary, English medium‘middle’reconstructed
  4. Proto-Italicc. 1500–700 BCE*meðjosWiktionary, English medium‘middle’reconstructed
  5. Latinc. 75 BCE–200 CEmediusWiktionary, English medium‘middle’
  6. Latinc. 75 BCE–200 CEmediumWiktionary, English mediumneuter of medius
  7. Englishearliest quotation 1631mediumWiktionary, English medium. Earliest quotation in Wiktionary’s entry: 1631, Francis Bacon, III. Century. [Experiments in Consort, Touching the Medium o: “VVhether any other Liquours, being made Mediums, cauſe a…”

Linked words

through Proto-Indo-European *médʰyos ‘between’

mid, midst, medallion, maidan, meso, 26 more

through Proto-Italic *meðjos

media, 1 more

through Latin medius ‘middle’

mean, medal, demi, median, mediation, milieu, mediator, mezzanine, moiety, medial, mediate, moyen, medulla, intermezzo, medio, 18 more

Today it means

noun The material of the surrounding environment, e.g. solid, liquid, gas, vacuum, or a specific substance such as a solvent.

Sources

Sources: Wiktionary, “medium”; the older steps come from the Wiktionary entry for Proto-Indo-European *médʰyos. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *me / medium

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