Etymograph

English

adamancy

Adamancy comes from Ancient Greek ἀδάμας ‘adamant, the hardest metal’, from δαμνάω ‘conquer’, and ultimately from Proto-Indo-European *demh₂- ‘to tame, domesticate’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*demh₂-1‘to tame, domesticate’reconstructed
  2. Ancient Greekc. 800–300 BCEδαμνάω1damnáō‘conquer’uncertain
  3. Ancient Greekc. 800–300 BCEἀδάμας2adámas‘adamant, the hardest metal’
  4. Englishearliest quotation 1979adamancy2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek ἀδάμας, which cites Beekes
  2. 2 Wiktionary, English adamancy
  3. Earliest quotation in Wiktionary’s entry: 1979, Andy Beck, Parents of Gays: “Knowing the stubbornness and adamancy of born-again Christians, they're…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*demh₂-Wiktionary, Ancient Greek ἀδάμας, which cites Beekes‘to tame, domesticate’reconstructed
  2. Ancient Greekc. 800–300 BCEδαμνάωWiktionary, Ancient Greek ἀδάμας, which cites Beekesdamnáō‘conquer’uncertain
  3. Ancient Greekc. 800–300 BCEἀδάμαςWiktionary, English adamancyadámas‘adamant, the hardest metal’
  4. Englishearliest quotation 1979adamancyWiktionary, English adamancy. Earliest quotation in Wiktionary’s entry: 1979, Andy Beck, Parents of Gays: “Knowing the stubbornness and adamancy of born-again Christians, they're…”

Linked words

through Proto-Indo-European *demh₂- ‘to tame, domesticate’

indomitable, daunt, 12 more

through Ancient Greek δαμνάω ‘conquer’

diamond, diamante, 9 more

Today it means

noun The property of being adamant.

Sources

Sources: Wiktionary, “adamancy”; the older steps come from the Wiktionary entry for Ancient Greek ἀδάμας. 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- / adamancy