-gon

-gon

(word root) angleExamples of words with the root -gon: pentagon

-gon

suff. A figure having a specified kind or number of angles: isogon.
[Latin -gōnum, from Greek -gōnon, from neuter of -gōnos, angled, from gōniā, angle; see genu- in Indo-European roots.]

-gon

n combining form indicating a figure having a specified number of angles: pentagon. [from Greek -gōnon, from gōnia angle]

-gon

a combining form used in the names of geometrical figures having the number or sort of angles specified by the initial element: isogon; polygon. [< Greek -gōnon, n. use of neuter of -gōnos, akin to gōnía angle, góny knee]