Etymograph

English

emulgent

Emulgent comes from Latin emulgens ‘exhausting’, from emulgeō ‘to milk out’, and ultimately from Proto-Indo-European *h₂melǵ-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂melǵ-1‘to milk’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂molǵéyeti1reconstructed
  3. Proto-Italicc. 1500–700 BCE*molgeō1‘to milk’reconstructed
  4. Latinc. 75 BCE–200 CEmulgeō2‘milk, extract’
  5. Latinc. 75 BCE–200 CEemulgeō3as emulgere, present participle‘to milk out’
  6. Latinc. 75 BCE–200 CEemulgens3‘exhausting’
  7. Englishearliest quotation 1705emulgent3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin mulgeo
  2. 2 Wiktionary, Latin emulgeo
  3. 3 Wiktionary, English emulgent
  4. Earliest quotation in Wiktionary’s entry: 1705, George Cheyne, Of the Existence of a Deity: “By the motion of the Heart, through the Emulgent…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂melǵ-Wiktionary, Latin mulgeo‘to milk’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂molǵéyetiWiktionary, Latin mulgeoreconstructed
  3. Proto-Italicc. 1500–700 BCE*molgeōWiktionary, Latin mulgeo‘to milk’reconstructed
  4. Latinc. 75 BCE–200 CEmulgeōWiktionary, Latin emulgeo‘milk, extract’
  5. Latinc. 75 BCE–200 CEemulgeōWiktionary, English emulgentas emulgere, present participle‘to milk out’
  6. Latinc. 75 BCE–200 CEemulgensWiktionary, English emulgent‘exhausting’
  7. Englishearliest quotation 1705emulgentWiktionary, English emulgent. Earliest quotation in Wiktionary’s entry: 1705, George Cheyne, Of the Existence of a Deity: “By the motion of the Heart, through the Emulgent…”

The story

From Latin emulgens, present participle of emulgere (‘to milk out’); so called because the kidney was regarded by the ancients as straining out the serum, as if by milking, and so producing the urine.

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *h₂melǵ- ‘to milk’

milk, milch, 1 more

through Latin mulgeō ‘milk, extract’

promulgation

through Latin emulgeō ‘to milk out’

emulsion

Today it means

adj Of a straining or purifying process.

Sources

Sources: Wiktionary, “emulgent”; the older steps come from the Wiktionary entries for Latin mulgeo, Latin emulgeo. 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 *h₂melǵ- / emulgent

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