petrography

noun

Etymology: Etymology tree Ancient Greek πέτρᾱ (pétrā)bor. Latin petrader. English petro- Proto-Indo-European *gerbʰ- Proto-Hellenic *grə́pʰō Ancient Greek γρᾰ́φω (grắphō) Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek γραφή (graphḗ) Ancient Greek -γραφίᾱ (-graphíā)bor. French -graphieder. English -graphy English petrography From petro- + -graphy.

1. The branch of petrology that deals with the scientific description and classification of rocks.
2. The art of writing on stone.