Etymology

midarm

M3I1D2A1R1M3

Today it means: The middle (lengthwise) of the upper (proximal) part of the arm. Full definition →

English arm ← Middle English arm ← Old English earm
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The story

  1. Proto-Indo-European*me
  2. Proto-Indo-European*dʰeh₁-?
  3. Proto-Indo-European*médʰi
  4. Proto-Indo-European*médʰyos
  5. Proto-Germanic*midjaz
  6. Proto-West Germanic*midi
  7. Old Englishmidd
  8. Middle Englishmid
  9. Englishmid
  10. Englishmid-
  11. Proto-Indo-European*h₂er-
  12. Proto-Indo-European*h₂érmos
  13. Proto-Germanic*armaz
  14. Proto-West Germanic*arm
  15. Old Englishearm
  16. Middle Englisharm
  17. Englisharm
  18. English todaymidarm

From mid- + arm.

Etymology from Wiktionary, CC BY-SA 4.0.