Etymology

moonbeam

M3O1O1N1B3E1A1M3

Today it means: A ray or shaft of moonlight. Full definition →

English beam ← Middle English bem ← Old English bēam
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The story

  1. Proto-Indo-European*med-
  2. Proto-Indo-European*meh₁-?
  3. Proto-Indo-European*mḗh₁n̥s
  4. Proto-Germanic*mēnô
  5. Proto-West Germanic*mānō
  6. Old Englishmōna
  7. Middle Englishmone
  8. Englishmoon
  9. Proto-Germanic*bagmaz?
  10. Proto-West Germanic*baum
  11. Old Englishbēam
  12. Middle Englishbem
  13. Englishbeam
  14. English todaymoonbeam

Compound of moon + beam.

Etymology from Wiktionary, CC BY-SA 4.0.