Etymology

petrograph

P3E1T1R1O1G2R1A1P3H4

Today it means: Drawing, writing or inscription on stone, as a painting on a cave wall. Full definition →

Ancient Greek γράφω (gráphō) ← Proto-Hellenic *grə́pʰō ← Proto-Indo-European *gerbʰ-
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The story

  1. Latinpetra
  2. Englishpetro-
  3. Proto-Indo-European*gerbʰ-
  4. Proto-Hellenic*grə́pʰō
  5. Ancient Greekγράφω (gráphō)
  6. English todaypetrograph

From petro- + -graph.

Etymology from Wiktionary, CC BY-SA 4.0.