Etymograph

English

decadarchy

Decadarchy comes from Ancient Greek δεκάς ‘a group of ten’, and goes back to Proto-Indo-European *déḱm̥.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*déḱm̥1‘ten’reconstructed
  2. Proto-Hellenicc. 2200–1600 BCE*dékə1‘ten’reconstructed
  3. Ancient Greekc. 800–300 BCEδέκᾰ2‘ten’
  4. Ancient Greekc. 800–300 BCEδεκάς3dekás‘a group of ten’
  5. Ancient Greekc. 800–300 BCEδεκαδαρχία3dekadarkhía
  6. Englishtodaydecadarchy3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek δέκα
  2. 2 Wiktionary, Ancient Greek δεκάς
  3. 3 Wiktionary, English decadarchy

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*déḱm̥Wiktionary, Ancient Greek δέκα‘ten’reconstructed
  2. Proto-Hellenicc. 2200–1600 BCE*dékəWiktionary, Ancient Greek δέκα‘ten’reconstructed
  3. Ancient Greekc. 800–300 BCEδέκᾰWiktionary, Ancient Greek δεκάς‘ten’
  4. Ancient Greekc. 800–300 BCEδεκάςWiktionary, English decadarchydekás‘a group of ten’
  5. Ancient Greekc. 800–300 BCEδεκαδαρχίαWiktionary, English decadarchydekadarkhía
  6. EnglishtodaydecadarchyWiktionary, English decadarchy

Formed from deca + archy

Proto-Indo-European *déḱm̥ ‘ten’

Proto-Hellenic *dékə ‘ten’

Ancient Greek δέκᾰ ‘ten’

Ancient Greek δεκάς ‘10’

Latin decas ‘ten’

English deca

Linked words

through Proto-Indo-European *déḱm̥ ‘ten’

ten, century, cent, hundred, dick, dozen, dean, sen, den, diner, decimal, tenfold, hectare, denier, dwt, doyen, deni, 51 more

Today it means

noun Synonym of decarchy.

Sources

Sources: Wiktionary, “decadarchy”; the older steps come from the Wiktionary entries for Ancient Greek δέκα, Ancient Greek δεκάς. 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 *déḱm̥ / decadarchy