Etymograph

English

decubitus

Decubitus comes from New Latin dēcubitus ‘lying down’, and goes back to Proto-Indo-European *ḱewb-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ḱewb-1reconstructed
  2. Proto-Italicc. 1500–700 BCE*kumbō1reconstructed
  3. Latinc. 75 BCE–200 CE*cumbō1‘to lie down, recline’reconstructed
  4. Latinc. 75 BCE–200 CEaccumbō2‘to lay oneself down at, to recline at table’
  5. Latinc. 75 BCE–200 CEdēcumbō2‘to lie down’
  6. New Latinc. 1500–1900dēcubitus3‘lying down’
  7. Englishearliest quotation 2016decubitus3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin accumbo
  2. 2 Wiktionary, Latin decubitus
  3. 3 Wiktionary, English decubitus
  4. Earliest quotation in Wiktionary’s entry: 2016, Mariano Scaglione, Ulrich Linsenmaier: “The initial recesses of the pleural cavity filled with…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ḱewb-Wiktionary, Latin accumboreconstructed
  2. Proto-Italicc. 1500–700 BCE*kumbōWiktionary, Latin accumboreconstructed
  3. Latinc. 75 BCE–200 CE*cumbōWiktionary, Latin accumbo‘to lie down, recline’reconstructed
  4. Latinc. 75 BCE–200 CEaccumbōWiktionary, Latin decubitus‘to lay oneself down at, to recline at table’
  5. Latinc. 75 BCE–200 CEdēcumbōWiktionary, Latin decubitus‘to lie down’
  6. New Latinc. 1500–1900dēcubitusWiktionary, English decubitus‘lying down’
  7. Englishearliest quotation 2016decubitusWiktionary, English decubitus. Earliest quotation in Wiktionary’s entry: 2016, Mariano Scaglione, Ulrich Linsenmaier: “The initial recesses of the pleural cavity filled with…”

Linked words

through Proto-Indo-European *ḱewb-

hip, cove, incumbent, cubicle, hobble, shoop, incubate, succubus, incubus, cubit, 12 more

through Latin *cumbō ‘to lie down, recline’

succumb, concubine, 7 more

Today it means

noun The posture of someone in bed, lying down or reclining.

Sources

Sources: Wiktionary, “decubitus”; the older steps come from the Wiktionary entries for Latin accumbo, Latin decubitus. 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 *ḱewb- / decubitus

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