A 19th-c. back-formation from 'graphic,' from Greek 'graphein' (to write/scratch) — the prolific root behind '-graph' compounds.
Definition
A diagram showing the relation between variable quantities, typically plotted along two axes; also, a visual representation of data or mathematical functions.
The Full Story
Greek19th centurywell-attested
From Greek graphē (writing, drawing), from graphein (to write, scratch, draw), from PIE *gerbh- (to scratch, carve). The Proto-Indo-European root *gerbh- carried the physical sense of scratching or incising, reflecting the earliest writing technologies where marks were carved into wax, clay, or stone. In Greek, graphein retained this tactile meaning before abstracting
Did you know?
The mineral graphitewas named in 1789 by the German geologist Abraham Werner from Greek 'graphein' (to write) because of its use in pencils. Pencil 'lead' was never lead at all — it was always graphite, a form of carbon, and its name literally means 'the writing substance.'
relationships between quantities. The word has since proliferated into compounds: photograph (light-writing), telegraph (far-writing), and paragraph (writing beside). Key roots: graphein (γράφειν) (Greek: "to write, scratch, draw"), *gerbh- (Proto-Indo-European: "to scratch, carve").