Etymograph

English

achluophobia

Achluophobia comes from Ancient Greek ἀχλύς ‘darkness’, and goes back to Proto-Indo-European *h₂eǵʰlu- ‘mist’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂eǵʰlu-‘mist’reconstructed
  2. Ancient Greekc. 800–300 BCEἀχλύςakhlús‘darkness’
  3. Englishearliest quotation 2007achluophobia

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂eǵʰlu-‘mist’reconstructed
  2. Ancient Greekc. 800–300 BCEἀχλύςakhlús‘darkness’
  3. Englishearliest quotation 2007achluophobia

Earliest quotation: 2007, Dave Smith, The Mountaineers Books: “If you have a severe case of achluophobia (fear…”

Today it means

noun The fear of darkness.

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

Etymograph / Proto-Indo-European *h₂eǵʰlu- / achluophobia