English
keratoconus
Keratoconus comes from Latin conus ‘cone’, and goes back to Ancient Greek κῶνος.
- Ancient Greekc. 800–300 BCEκῶνος‘pine cone’
- Latinc. 75 BCE–200 CEconus‘cone’
- Englishtodaykeratoconus
attested reconstructed ? uncertain or disputed
Earlier history uncertain.
Lineage
- Ancient Greekc. 800–300 BCEκῶνος‘pine cone’
- Latinc. 75 BCE–200 CEconus‘cone’
- Englishtodaykeratoconus
Linked words
through Ancient Greek κῶνος ‘pine cone’
through Latin conus ‘cone’
Today it means
noun A degenerative noninflammatory disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than its normal even curve.
Language periods are conventional ranges, not dates for this word.
Etymograph / Ancient Greek κῶνος / keratoconus