Etymology

nuller

N1U1L1L1E1R1

Today it means: An optical device that uses destructive interference to cancel out a strong light source, such as a star. Full definition →

English null ← Middle French nu ← Old French nul
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The story

  1. Proto-Indo-European*ís?
  2. Proto-Indo-European*h₁óynos
  3. Proto-Italic*oinos
  4. Proto-Italic*noinolos
  5. Latinnūllus
  6. Old Frenchnul
  7. Middle Frenchnu
  8. Englishnull
  9. English todaynuller

From null + -er.

Etymology from Wiktionary, CC BY-SA 4.0.