Re graphing

graph

[graf, grahf]
noun
1.
a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc.
2.
Mathematics.
a.
a series of points, discrete or continuous, as in forming a curve or surface, each of which represents a value of a given function.
b.
Also called linear graph. a network of lines connecting points.
3.
a written symbol for an idea, a sound, or a linguistic expression.
verb (used with object)
4.
Mathematics. to draw (a curve) as representing a given function.
5.
to represent by means of a graph.
Relevant Questions

Origin:
1875–80; short for graphic formula; see graphic

regraph, verb (used with object)

gaff, gaffe, graph.

1. See map.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
 graph (ɡrɑːf, ɡræf) —n 1. See also bar graph Also called: chart a drawing depicting the relation between certain sets of numbers or quantities by means of a series of dots, lines, etc, plotted with reference to a set of axes 2. maths a drawing depicting a functional relation between two or three variables by means of a curve or surface containing only those points whose coordinates satisfy the relation 3. maths a structure represented by a diagram consisting of points (vertices) joined by lines (edges) 4. linguistics a symbol in a writing system not further subdivisible into other such symbols —vb 5. (tr) to draw or represent in a graph [C19: short for graphic formula]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

graph
1878, shortening of graphic formula (see graphic). The verb is from 1898.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

-graph suff.
An instrument for writing, drawing, or recording: cardiograph.

The American Heritage® Stedman's Medical Dictionary