Etymograph

English

tenebrous

Tenebrous comes from Latin tenebrōsus ‘dark, gloomy’, from tenebrae ‘darkness, shadows’, and ultimately from Proto-Indo-European *temH- ‘to be dark’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*temH-‘to be dark’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*témHos‘darkness’reconstructed
  3. Proto-Indo-European, derivedc. 4500–2500 BCE*temH-(e)s-ro-reconstructed
  4. Proto-Italicc. 1500–700 BCE*temazros‘dark’reconstructed
  5. Latinc. 75 BCE–200 CEtenebrae‘darkness, shadows’
  6. Latin, derivedc. 75 BCE–200 CEtenebrōsus‘dark, gloomy’
  7. Anglo-Normanc. 1066–1400tenebrous
  8. Middle Englishc. 1150–1500tenebrose‘dark, gloomy’
  9. Englishearliest quotation 1847tenebrous

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*temH-‘to be dark’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*témHos‘darkness’reconstructed
  3. Proto-Indo-European, derivedc. 4500–2500 BCE*temH-(e)s-ro-reconstructed
  4. Proto-Italicc. 1500–700 BCE*temazros‘dark’reconstructed
  5. Latinc. 75 BCE–200 CEtenebrae‘darkness, shadows’
  6. Latin, derivedc. 75 BCE–200 CEtenebrōsus‘dark, gloomy’
  7. Anglo-Normanc. 1066–1400tenebrous
  8. Middle Englishc. 1150–1500tenebrose‘dark, gloomy’
  9. Englishearliest quotation 1847tenebrous

Earliest quotation: 1847, Henry Wadsworth Longfellow, Boston: “Over their heads the towering and tenebrous boughs of…”

Linked words

through Proto-Indo-European *temH- ‘to be dark’

timid, 19 more

through Proto-Indo-European *témHos ‘darkness’

temerity, tamas, 9 more

Today it means

adj Dark and gloomy; obscure.

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

Etymograph / Proto-Indo-European *temH- / tenebrous