English
pinacoid
Pinacoid comes from Ancient Greek πινάκιον ‘slab, tablet’, and goes back to πῐ́νᾰξ.
- Ancient Greekc. 800–300 BCEπῐ́νᾰξ‘board, tablet’
- Ancient Greek, derivedc. 800–300 BCEπινάκιονpinákion‘slab, tablet’
- Englishearliest quotation 2009pinacoid
attested reconstructed ? uncertain or disputed
Lineage
- Ancient Greekc. 800–300 BCEπῐ́νᾰξ‘board, tablet’
- Ancient Greek, derivedc. 800–300 BCEπινάκιονpinákion‘slab, tablet’
- Englishearliest quotation 2009pinacoid
Earliest quotation: 2009, Juan Manuel Garcia-Ruiz et al.: “The crystallographic symmetry is initially broken toward dilation symmetry…”
Every English word from Ancient Greek πῐ́νᾰξ
Today it means
noun The face of a crystal parallel to two of the axes.
Language periods are conventional ranges, not dates for this word.
Etymograph / Ancient Greek πῐ́νᾰξ / pinacoid