Etymology

amplitude

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Today it means: The measure of the size of something, especially its width or breadth; largeness, magnitude. Full definition →

Middle French amplitude ← Latin amplitūdō ← Proto-Italic *plēnos
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The story

  1. Proto-Indo-European*h₃emh₃-
  2. Proto-Indo-European*h₃emh₃-lo-s
  3. Proto-Italic*amlos?
  4. Proto-Indo-European*h₂ent-
  5. Proto-Indo-European*h₂énts?
  6. Proto-Indo-European*h₂m̥bʰí
  7. Proto-Italic*amβi-
  8. Latinambi-
  9. Proto-Indo-European*pleh₁-
  10. Proto-Indo-European*pl̥h₁nós
  11. Proto-Italic*plēnos
  12. Latinplēnus?
  13. Latinambiplus?
  14. Latinamplus
  15. Latinamplitūdō
  16. Middle Frenchamplitude
  17. English todayamplitude

Borrowed from Middle French amplitude, from Latin amplitūdō, from amplus (“large”). By surface analysis, ample + -itude.

Words from the same roots

Latinamplitūdō all →

Etymology from Wiktionary, CC BY-SA 4.0.