Gon is defined as that a shape has a specific number of angles.
(suffix)An example of the gon suffix is a five-sided shape; a pentagon.
See -gon in Webster's New World College Dictionary
Origin: Gr -gōnon < gōnia, an angle: see knee
See -gon in American Heritage Dictionary 4
Origin:
Origin: Greek -gōnon
Origin: , from
Origin: neuter of gōnos, angled
Origin: , from gōniā, angle; see genu-1 in Indo-European roots
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