Etymology

chromosphere

C3H4R1O1M3O1S1P3H4E1R1E1

Today it means: The faint pink extension of a star's atmospheric envelope between the corona and the photosphere Full definition →

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

  1. Proto-Hellenic*kʰrṓwmə
  2. Ancient Greekχρῶμᾰ (khrômă)
  3. Englishchromo-
  4. Ancient Greekσφαῖρᾰ (sphaîră)
  5. Latinsphaera
  6. Late Latinsphēra
  7. Old Frenchsphere
  8. Middle Englishspere
  9. Englishsphere
  10. English todaychromosphere

From chromo- + -sphere.

Etymology from Wiktionary, CC BY-SA 4.0.