Etymograph

English

isochore

Isochore comes from Ancient Greek χώρα ‘place’, from χήρα ‘widow’, and perhaps ultimately from Proto-Indo-European *ǵʰeh₁- ‘to leave behind’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰeh₁-1‘to leave behind’uncertain
  2. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰeh₁ro-2‘derelict’uncertain
  3. Ancient Greekc. 800–300 BCEχήρα1khḗra‘widow’uncertain
  4. Ancient Greekc. 800–300 BCEχώρα3khṓra‘place’
  5. Englishearliest quotation 1887isochore3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek χώρα, which cites Beekes
  2. 2 Wiktionary, Ancient Greek χήρα
  3. 3 Wiktionary, English isochore
  4. Earliest quotation in Wiktionary’s entry: 1887, Anonymous: Engineering: “The numerical results are given from which the authors…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰeh₁-Wiktionary, Ancient Greek χώρα, which cites Beekes‘to leave behind’uncertain
  2. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰeh₁ro-Wiktionary, Ancient Greek χήρα‘derelict’uncertain
  3. Ancient Greekc. 800–300 BCEχήραWiktionary, Ancient Greek χώρα, which cites Beekeskhḗra‘widow’uncertain
  4. Ancient Greekc. 800–300 BCEχώραWiktionary, English isochorekhṓra‘place’
  5. Englishearliest quotation 1887isochoreWiktionary, English isochore. Earliest quotation in Wiktionary’s entry: 1887, Anonymous: Engineering: “The numerical results are given from which the authors…”

Formed from iso

Linked words

through Proto-Indo-European *ǵʰeh₁- ‘to leave behind’

go, gone, inherit, forego, 19 more

through Proto-Indo-European *ǵʰeh₁ro- ‘derelict’

heritage, heir, hereditary, heredity, 14 more

Today it means

noun In general, a place or position with relevant parameters matching other places, as in having the same pressure, chemistry, population etc. Even within a single discipline the parameter might vary according to convenience e.g. in physics alone it might refer to velocity, volume, gravity, and many more. cf. contour, isopleth.

Sources

Sources: Wiktionary, “isochore”; the older steps come from the Wiktionary entries for Ancient Greek χώρα, Ancient Greek χήρα. 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 *ǵʰeh₁- / isochore

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