Etymology

acoptic

A1C3O1P3T1I1C3

Today it means: Not self-intersecting. Full definition →

Ancient Greek κόπτω (kóptō) ← Proto-Hellenic *ə- ← Proto-Indo-European *n̥-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Hellenic*ə-
  4. Ancient Greekἀ- (a-)
  5. Ancient Greekκόπτω (kóptō)
  6. English todayacoptic

Introduced by the mathematician Branko Grünbaum to clarify terminology in the geometry of polygons and polyhedra. From Ancient Greek ἀ- (a-, “not”) + κόπτω (kóptō, “to cut”).

Etymology from Wiktionary, CC BY-SA 4.0.