Etymology

barysphere

B3A1R1Y4S1P3H4E1R1E1

Today it means: The central core of the Earth (or similar planets) Full definition →

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

  1. Englishbary-
  2. Ancient Greekσφαῖρᾰ (sphaîră)
  3. Latinsphaera
  4. Late Latinsphēra
  5. Old Frenchsphere
  6. Middle Englishspere
  7. Englishsphere
  8. English todaybarysphere

From bary- + -sphere.

Etymology from Wiktionary, CC BY-SA 4.0.