Etymograph

English

noxious

Noxious comes from Latin noxius ‘hurtful, injurious’, and goes back to Proto-Indo-European *neḱ- ‘perish, disappear’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*neḱ-‘perish, disappear’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*noḱ-éye-tireconstructed
  3. Proto-Italicc. 1500–700 BCE*nokeō‘to harm, hurt, injure’reconstructed
  4. Latinc. 75 BCE–200 CEnoceōas nocere‘to hurt, injure’
  5. Latin, derivedc. 75 BCE–200 CEnoxa‘hurt, injury’
  6. Latin, derivedc. 75 BCE–200 CEnoxius‘hurtful, injurious’
  7. Englishearliest quotation 1822noxious

attested reconstructed ? uncertain or disputed deepest recorded ancestor

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*neḱ-‘perish, disappear’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*noḱ-éye-tireconstructed
  3. Proto-Italicc. 1500–700 BCE*nokeō‘to harm, hurt, injure’reconstructed
  4. Latinc. 75 BCE–200 CEnoceōas nocere‘to hurt, injure’
  5. Latin, derivedc. 75 BCE–200 CEnoxa‘hurt, injury’
  6. Latin, derivedc. 75 BCE–200 CEnoxius‘hurtful, injurious’
  7. Englishearliest quotation 1822noxious

Earliest quotation: 1822, John Barclay, Ancient and Modern: “In the living state, the body is observed to…”

Linked words

through Proto-Indo-European *neḱ- ‘perish, disappear’

nectar, necropolis, internecine, 19 more

through Latin noceō ‘to hurt, injure’

innocent, innocence, nuisance, innocuous, 13 more

Today it means

adj Harmful; injurious.

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *neḱ- / noxious