Etymograph

English

isopleth

Isopleth comes from Ancient Greek πλῆθος ‘a great number’.

  1. Ancient Greekc. 800–300 BCEπλῆθοςplêthos‘a great number’
  2. Englishtodayisopleth

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Ancient Greekc. 800–300 BCEπλῆθοςplêthos‘a great number’
  2. Englishtodayisopleth

Formed from iso-

Ancient Greek ἴσος ‘equal’

English iso-

Linked words

through Proto-Indo-European *pleh₁- ‘to fill’

people, public, full, popular, plus, fill, supply, complete, poll, plenty, folk, plain, implement, manipulation, comply, completion, accomplish, supplement, complement, plural, ample, amplitude, amplify, puri, plenary, depletion, replenish, volk, plenum, replete, plebs, plebeian, deplete, fulsome, 74 more

through Ancient Greek πλήθω ‘to fill’

plethora, 1 more

Today it means

noun A line drawn on a map through all points having the same value of some measurable quantity.

Language periods are conventional ranges, not dates for this word.

Etymograph / Ancient Greek πλῆθος / isopleth