Etymology

extrasolar

E1X8T1R1A1S1O1L1A1R1

Today it means: of or originating outside the Solar System. Full definition →

English solar ← Middle English solar ← Latin sōlāris
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The story

  1. Proto-Indo-European*h₁éǵʰ
  2. Proto-Indo-European*h₁éǵʰs
  3. Proto-Indo-European*h₁eǵʰsteros
  4. Proto-Italic*eksteros
  5. Latinexter
  6. Latinextrā
  7. Englishextra-
  8. Proto-Indo-European*sóh₂wl̥
  9. Latinsōl
  10. Proto-Indo-European*h₂el-
  11. Proto-Indo-European*h₂élisder.?
  12. Latinsōlāris
  13. Middle Englishsolar
  14. Englishsolar
  15. English todayextrasolar

From extra- + solar.

Etymology from Wiktionary, CC BY-SA 4.0.