English
glauconite
Glauconite comes from Ancient Greek γλαυκός ‘blue-green’.
- Ancient Greekc. 800–300 BCEγλαυκόςglaukós‘blue-green’
- Germanc. 1650–presentGlaukonit
- Englishtodayglauconite
attested reconstructed ? uncertain or disputed
Earlier history uncertain.
Lineage
- Ancient Greekc. 800–300 BCEγλαυκόςglaukós‘blue-green’
- Germanc. 1650–presentGlaukonit
- Englishtodayglauconite
Every English word from Ancient Greek γλαυκός
Today it means
noun A greenish form of mica found in greensand.
Language periods are conventional ranges, not dates for this word.
Etymograph / Ancient Greek γλαυκός / glauconite