English
demantoid
Demantoid comes from German Demantoid, from Old French diamant ‘diamond’, and perhaps ultimately from Proto-Indo-European *demh₂- ‘to tame, domesticate’.
- Proto-Indo-Europeanc. 4500–2500 BCE*demh₂-1‘to tame, domesticate’uncertain
- Ancient Greekc. 800–300 BCEδαμνάω1damnáō‘conquer’uncertain
- Ancient Greekc. 800–300 BCEἀδάμας2‘adamant, the hardest metal’uncertain
- Latinc. 75 BCE–200 CEadamās2‘Adamant’uncertain
- Late Latinc. 200–600 CEdiamas2
- Old Frenchc. 842–1400diamant3‘diamond’
- Middle High Germanc. 1050–1350diemant3
- Germanc. 1650–presentDemantoid3
- Englishtodaydemantoid3
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Ancient Greek ἀδάμας, which cites Beekes
- 2 Wiktionary, Old French diamant
- 3 Wiktionary, English demantoid
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*demh₂-Wiktionary, Ancient Greek ἀδάμας, which cites Beekes‘to tame, domesticate’uncertain
- Ancient Greekc. 800–300 BCEδαμνάωWiktionary, Ancient Greek ἀδάμας, which cites Beekesdamnáō‘conquer’uncertain
- Ancient Greekc. 800–300 BCEἀδάμαςWiktionary, Old French diamant‘adamant, the hardest metal’uncertain
- Latinc. 75 BCE–200 CEadamāsWiktionary, Old French diamant‘Adamant’uncertain
- Late Latinc. 200–600 CEdiamasWiktionary, Old French diamant
- Old Frenchc. 842–1400diamantWiktionary, English demantoid‘diamond’
- Middle High Germanc. 1050–1350diemantWiktionary, English demantoid
- Germanc. 1650–presentDemantoidWiktionary, English demantoid
- EnglishtodaydemantoidWiktionary, English demantoid
Linked words
through Proto-Indo-European *demh₂- ‘to tame, domesticate’
through Ancient Greek δαμνάω ‘conquer’
through Ancient Greek ἀδάμας ‘adamant, the hardest metal’
through Latin adamās ‘Adamant’
through Old French diamant ‘diamond’
Today it means
noun A green garnet.
Sources
Sources: Wiktionary, “demantoid”; the older steps come from the Wiktionary entries for Ancient Greek ἀδάμας, Old French diamant. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *demh₂- / demantoid