Etymology

pentacene

P3E1N1T1A1C3E1N1E1

Today it means: A polycyclic aromatic hydrocarbon; the acene containing five fused rings. Full definition →

English acene ← French anthracène ← Ancient Greek πεντᾰ- (pentă-)
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The story

  1. Proto-Indo-European*pénkʷe
  2. Proto-Hellenic*pénkʷe
  3. Ancient Greekπέντε (pénte)
  4. Ancient Greekπεντᾰ- (pentă-)
  5. Englishpenta-
  6. Frenchanthracène
  7. Englishanthraceneclip.
  8. Englishacene
  9. English todaypentacene

From penta- + acene.

Etymology from Wiktionary, CC BY-SA 4.0.