Etymology

ecosphere

E1C3O1S1P3H4E1R1E1

Today it means: The portion of the atmosphere from sea-level to about 4000 meters in which it is possible to breathe without technological assistance. Full definition →

English sphere ← Middle English spere ← Old French sphere
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The story

  1. Proto-Indo-European*weyḱ-
  2. Proto-Indo-European*wóyḱos
  3. Proto-Hellenic*wóikos
  4. Ancient Greekϝοῖκος (woîkos)
  5. Ancient Greekοἶκος (oîkos)
  6. Latinoeco-
  7. Frenchéco-
  8. Englisheco-
  9. Ancient Greekσφαῖρᾰ (sphaîră)
  10. Latinsphaera
  11. Late Latinsphēra
  12. Old Frenchsphere
  13. Middle Englishspere
  14. Englishsphere
  15. English todayecosphere

From eco- + -sphere.

Etymology from Wiktionary, CC BY-SA 4.0.