Etymology

macropinacoid

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Today it means: One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes. Full definition →

English pinacoid ← French macro- ← Ancient Greek μᾰκρός (măkrós)
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The story

  1. Proto-Indo-European*meh₂ḱ-
  2. Proto-Indo-European*mh₂ḱrós
  3. Proto-Hellenic*makrós
  4. Ancient Greekμᾰκρός (măkrós)
  5. Frenchmacro-
  6. Englishmacro-
  7. Englishpinacoid
  8. English todaymacropinacoid

From macro- + pinacoid.

Etymology from Wiktionary, CC BY-SA 4.0.