Etymology

heliophysics

H4E1L1I1O1P3H4Y4S1I1C3S1

Today it means: The physics of the Sun and its interactions with objects within the heliosphere Full definition →

English physics ← Ancient Greek ἥλῐος (hḗlĭos) ← Proto-Hellenic *hāwélios
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The story

  1. Proto-Indo-European*sóh₂wl̥
  2. Proto-Indo-European*sh₂wél(i)yos
  3. Proto-Hellenic*hāwélios
  4. Ancient Greekἥλῐος (hḗlĭos)
  5. Englishhelio-
  6. Englishphysics
  7. English todayheliophysics

From helio- + physics.

Etymology from Wiktionary, CC BY-SA 4.0.