Etymology

gonioprism

G2O1N1I1O1P3R1I1S1M3

Today it means: A prismatic lens for use in goniometers Full definition →

English prism ← Late Latin prisma ← Ancient Greek πρίσμᾰ (prísmă)
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The story

  1. Proto-Indo-European*ǵónu
  2. Proto-Hellenic*gónu
  3. Proto-Hellenic*gonwía
  4. Ancient Greekγωνίᾱ (gōníā)
  5. Englishgonio-
  6. Ancient Greekπρῑ́ω (prī́ō)
  7. Ancient Greekπρίσμᾰ (prísmă)
  8. Late Latinprisma
  9. Englishprism
  10. English todaygonioprism

From gonio- + prism.

Etymology from Wiktionary, CC BY-SA 4.0.