Etymology

endofunction

E1N1D2O1F4U1N1C3T1I1O1N1

Today it means: A function whose codomain is equal to its domain. Full definition →

English function ← Ancient Greek ἔνδον (éndon) ← Proto-Hellenic *éndon
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The story

  1. Proto-Indo-European*h₁n̥dóm
  2. Proto-Hellenic*éndon
  3. Ancient Greekἔνδον (éndon)
  4. Englishendo-
  5. Englishfunction
  6. English todayendofunction

From endo- + function.

Etymology from Wiktionary, CC BY-SA 4.0.